Chapter 36: Vaginal Bleeding Evaluation

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Hello and welcome back to the Deep Dive.

Today we are tackling a beast of a topic.

It's one of the most common, yet I think one of the most complex, you are going to see in primary care.

It really is.

It spans everything from puberty to post -menopause.

Absolutely.

So we're opening up Advanced Health Assessment and Clinical Diagnosis in Primary Care, specifically the sixth edition, and we are turning straight to chapter 36.

Chapter 36, Vaginal Bleeding.

Exactly.

And look, if you are a nursing student or an APN student, you know this isn't just about knowing what bleeding is.

It's really about the detective work.

It's about filtering through this massive list of possibilities, from the totally benign to the truly life -threatening and doing it systematically.

So our mission today is clear.

We're going to break down this chapter exactly as it's written.

Which is so important.

We're going from definitions to history to the physical exam, the labs, and then finally that massive differential diagnosis.

And that structure is vital.

I mean, in primary care, you don't always have the luxury of an immediate MRI or a surgical team standing by, you know.

Not at all.

This chapter is really about symptom -based assessment.

It's about using your clinical reasoning to distinguish between something like a simple hormonal imbalance and a surgical emergency, like a ruptured ectopic pregnancy.

Right.

So before we even touch a patient history, we have to speak the language.

And the text starts right off the bat with a glossary of terms.

And I feel like we have to unpack these immediately, because if you mix up your metro with your you're going to be lost from the get -go.

It happens more often than you'd think.

And look, precision in your language leads to precision in your diagnosis.

So let's set the standard first.

The text defines the average menstrual cycle as 28 days.

Okay.

So our baseline, our normal is 28.

And the average duration of menses, the actual bleeding part is about four days.

So when we start talking at all these abnormalities, we are comparing everything back to those two numbers.

Got it.

So let's run through the abnormal list then.

First one the text gives us is polymenorrhea.

Right.

So poly usually means many.

In this context, it means the cycles are happening too often.

The text defines this as cycles occurring fewer than every 21 days.

So it feels like you're always getting your period.

Exactly.

Think of it as a calendar that is just way too crowded.

Okay.

So a very short cycle happening way too frequently, then the opposite of that would have to be oligomenorrhea.

Correct.

Oligo means few or scanty.

So these are cycles that occur much less often, specifically more than 35 days apart.

Your calendar starts to look pretty empty.

Okay.

Now let's get to the two that I think always trip people up, metorrhagia and menorrhagia.

Let's distinguish them carefully because this is really where charting errors can happen.

So metorrhagia refers to the timing, the bleeding that happens at irregular intervals.

This also includes what we call intermenstrual bleeding,

which is a bleeding that happens between otherwise normal cycles.

So metorrhagia is all about when you bleed.

It's the unpredictability of it.

Menorrhagia, on the other hand, is about how much you're bleeding.

Exactly.

Menorrhagia is defined as excessive bleeding.

And the text gives us very specific metrics here, which is helpful.

It's menstruation lasting longer than seven days or a total blood loss heavier than 80 milliliters.

And you should keep that number in mind because we are definitely going to come back to how you actually measure that in a real clinical setting later on.

It doesn't sound like a lot, but in terms of blood loss, it's the threshold for things like iron deficiency anemia.

A huge threshold.

And then of course, you can have the worst of both worlds.

You can find them.

Menometorrhagia.

Which is just what it sounds like.

Bleeding that is both heavy and irregular.

This is often the most distressing presentation for the patient because there's no rhyme or reason to it.

And it's a huge volume.

And just to round out the list, the text also mentions hypomenorrhea.

Right.

And that's just normal frequency.

So every 28 days or so, but a decreased amount of flow.

So a much lighter period than usual.

Okay.

So we've got these terms down, but why do we care so much?

I mean, besides charting correctly,

the text makes a really interesting connection right at the start of the chapter between these bleeding patterns and the body's control center.

Yes.

And this is kind of the aha moment here.

It's understanding the HPO axis,

the hypothalamic pituitary ovarian axis.

The text explains that many systemic disorders cause an imbalance in this axis.

So if that delicate communication loop between the brain and the ovaries gets disrupted, that is what physically manifests as these patterns, bleeding that's too heavy, too frequent, or just completely unpredictable.

So it's not just bleeding.

It's a sign of a system that's out of sync.

I love that framing.

It positions the bleeding as a symptom of a systemic communication breakdown.

It helps you realize that the uterus is often just the messenger for a problem that might be starting way up in the brain or, you know, in the thyroid.

Okay.

So we have our vocabulary.

Now we can move into section one of the text.

Diagnostic reasoning and the focused history.

And the text kicks this section off with a question that is printed in bold.

It's essentially shouting at the reader.

Is this a condition that requires immediate intervention?

Safety first, always.

We are not trying to figure out if it's a polyp yet.

We are trying to figure out if our patient is going to be stable in the next hour.

Always.

Before you worry about diagnosing a fibroid or a polyp, you have to ensure the patient is hemodynamically stable.

The text asks explicitly, how heavy is the bleeding and do you have a bleeding disorder?

But heavy can be so subjective, right?

A patient might say it's heavy, but medically it's manageable.

Or, and I've seen this, they might downplay a true hemorrhage because they're just used to having very heavy periods.

How does the text tell us to quantify this?

This goes right back to that 80 millimill number we just talked about.

The text provides a very practical clinical conversion.

It states that saturating one or more sanitary pads or tampons hourly for several consecutive hours,

that likely equates to greater than 80 millimills of blood loss.

That is a very specific usable metric.

Pads per hour.

It's something you can ask a patient directly.

In the last three hours, how many times have you had to change your pad?

Precisely.

And the text points out there are other clues in the history that point to volume and potential coagulation issues.

If a patient reports flooding or passing large clots or leaking through their clothes, especially overnight, the text warns that this may be associated with a clotting disorder.

Okay, so you've established they aren't currently bleeding out on your exam table.

Now we get to what the text practically treats as the golden rule of the entire chapter.

I'm just going to quote it directly.

Regard patients of childbearing age with a uterus as pregnant until pregnancy is ruled out.

You cannot oversee the importance of this.

It doesn't matter if they say they use protection religiously.

It doesn't matter if they say their partner had a vasectomy.

It doesn't matter if they say their period was last week.

You rule out pregnancy.

In primary care, assumptions lead to lawsuits and, more importantly, tragedy.

They really do.

And the text explains why this can be so tricky.

It talks about implantation bleeding.

This is a huge masquerader.

It is.

Just because there is some bleeding doesn't mean there isn't a pregnancy.

When the blastocyst, that very early fertilized egg burrows into the endometrium, it has to invade the maternal blood supply to start forming the placenta.

And that process can cause a small amount of bleeding.

And the timing is what makes it so confusing for the patient.

Exactly.

Implantation bleeding typically happens about one week before the expected menstrual cycle.

So a patient might very easily mistake that for a light early period.

They tell you, oh, yeah, I had my period.

But really, what they had was implantation bleeding.

And we are ruling this out so aggressively because the stakes are incredibly high.

The text throws some really heavy statistics at us regarding pregnancy loss.

It does.

It estimates that up to 50 % half of all fertilized eggs die and are aborted spontaneously, usually before the pregnancy is even detected clinically.

Wow.

And then for clinically recognized pregnancies, the ones where you get a positive test, 10 % to 15 % still result in a first trimester loss.

So miscarriage is incredibly common.

And then there's the ectopic risk, which is a whole different beast entirely.

Which is life threatening.

The text notes that ectopic pregnancy occurs in about one in every 200 pregnancies.

But, and this is a huge but, if the patient has a history of

disease or PID, that rate skyrockets to one in 40.

One in 40.

That is a massive jump.

So a history of PID is a major, major red flag in your history taking.

If they have that in their chart and they are bleeding, your alarm bell should be screaming.

Absolutely.

You treat that patient with a much, much higher index of suspicion.

OK.

Moving on in the history taking, the text breaks down diagnostic reasoning by age groups.

And it seems like the likely cause of bleeding changes drastically depending on how old the patient is.

Let's start with adolescence.

In adolescence, the text is pretty clear that the vast majority of abnormal bleeding is a novulatory.

A novulatory.

So that means they aren't releasing an egg every month.

That's right.

In the first year or so of menstruation, the HPO system is still immature.

You have estrogen stimulating the uterine lining to build up.

But you don't have the opposing progesterone to stabilize it.

Because progesterone comes from the corpus luteum, which you only get if you actually ovulate.

Exactly.

So without that progesterone, the lining just gets thicker and thicker, more vascular, and very unstable.

Eventually, parts of it just shed randomly.

The text calls this disynchronous bleeding.

Disynchronous.

I like that word.

It's messy and irregular because the hormonal signals just aren't fully coordinated yet.

That makes perfect sense.

So in teenagers, you should be thinking immature system.

It's like an orchestra warming up before a concert.

A lot of noise, not much rhythm yet.

What about the other end of the spectrum?

Perimenopause and postmenopause.

Well, perimenopause, which can last up to 10 years, is often characterized by irregular bleeding.

But the text gives a very stark warning here.

Perimenopause often signals cancer.

You have to be extremely vigilant.

You can't just chalk it all up to the change.

And postmenopause, that seems more clear cut.

It is.

Once menopause is established and the definition is one full year without any cycles,

any bleeding at all is abnormal.

The text lists the likely origins.

Hormone therapy, endometrial hyperplasia, which is a precancerous condition, or endometrial cancer itself.

So to put it simply, teen bleeding is often functional, a problem with the process.

Postmenopausal bleeding is structural or ominous until you can prove otherwise.

That's a really good heuristic to keep in your head.

Now let's talk about the real detective work of symptom analysis.

The text has this great section connecting specific symptoms to specific diagnoses.

This is the fun part.

I'm going to throw a symptom at you and you tell me what the text says we should suspect.

Let's do it.

Okay.

Postcoital bleeding, bleeding immediately after sex.

The text points immediately to cervical issues.

The cervix is right at the top of the vagina.

So you should think cervical infection like cervicitis, cervical polyps, or of course cervical cancer.

The mechanical friction of intercourse helps you identify the location of the problem.

Okay.

What about dispariunia, painful sex?

That strongly suggests endometriosis.

That deep aching pain is a hallmark of endometrial tissue being where it shouldn't be.

What about a sensation of pelvic pressure?

The patient says something like it feels like something is falling out down there.

That subjective description is classic for uterine prolapse.

The structural supports, the ligaments holding the uterus up are failing.

Let's go systemic now.

What if they present with menorrhagia, that really heavy bleeding, but they also tell you they're exhausted, they've gained weight, and they're always cold?

Those are the absolute classic signs of hypothyroidism.

The text actually notes that hypothyroidism is found in 22 % of patients with severe menorrhagia.

22%.

That's huge.

That's nearly a quarter of them.

It really underscores why a TSH is a standard part of the lab workup for heavy bleeding.

It has to be.

Okay.

What if you see easy bruising on their skin, or they mention their gums bleed when they brush their teeth alongside their heavy periods?

Now you have to think about a systemic bleeding disorder like von Willebrand disease.

The text points out this is especially true if it's a teenager presenting with heavy periods right from an arc.

If they have been bleeding heavily since day one of their very first period, it's very likely something genetic.

Fascinating.

It really shows how you can't just look at the uterus.

You have to look at the whole patient.

The text also makes a pretty important distinction between acute and chronic bleeding patterns.

Yes.

For acute bleeding, the text gives a very specific and high stakes example.

In a post -menopausal patient who still has her uterus, a single episode of acute bleeding is highly suspicious for endometrial cancer.

You do not wait for a second episode.

One strike and you have to investigate.

And for chronic bleeding?

A very common pattern for chronic is irregular cycles coupled with obesity.

The text links this profile very strongly to polycystic ovarian syndrome, or PCOS.

It also mentions the older name for it, Stein -Leventhal syndrome.

Right.

And we'll definitely get deeper into PCOS later in the differentials.

Now, we can't ignore what the patient is putting into their body.

The chapter has a whole section on contraceptives and medications.

This is a huge, huge source of abnormal bleeding.

Let's take IUDs, for instance.

Intruderine devices.

The text notes that the copper IUD, for example, can cause menorrhagia and cramping.

But with any IUD, you also have to check for displacement or even perforation.

Is the device actually where it's supposed to be?

An ultrasound can tell you that.

And the pill.

Oral contraceptives seem to cause a lot of confusion.

They do.

And this is interesting.

The text explains that if a patient stops taking the pill after years of use, they might experience much heavier bleeding than they remember having before they started it.

But also, while they're on the pill, breakthrough bleeding is incredibly common.

And the timing of that breakthrough bleeding matters, right?

This is one of those technical details students really need to memorize.

It does, because it helps you troubleshoot.

The text breaks it down very clearly.

If breakthrough bleeding happens in the first two weeks of the pill pack,

it's likely due to low estrogen levels in that specific formulation.

Okay.

If it happens in the last two weeks of the pack, it's likely due to low progesterone levels.

That is such a specific and useful clinical pearl.

First two weeks equals estrogen deficiency.

Last two weeks equals progesterone deficiency.

That helps you adjust the prescription logically, rather than just randomly trying a different pill.

Exactly.

And don't forget the long -acting progestins, like the implant or the injection.

Because there is a lack of estrogen to stabilize the endometrium, irregular heavy menses are a very common side effect.

And finally on meds.

Are there just regular drugs that aren't hormonal that can just make you bleed more?

Certainly.

Anticoagulants are the most obvious ones.

Coumadin, Seralto, Iliquis.

But the text also lists NSAges, though it makes a specific note that aspirin in particular can increase menstrual flow.

And then there are drugs that affect how your body metabolizes estrogen,

like phenobarbital and rifampin.

They induce liver enzymes that essentially chew up estrogen faster, leading to lower levels and potential breakthrough bleeding.

I want to touch briefly on two specific history sections the text highlights.

Pediatric and menopause history.

We touched on teens, but what about really little kids?

Pre -puberty bleeding, specifically before the age of eight, is always abnormal.

The text lists the differentials you have to consider.

A foreign body in the vagina, an injury, sexual abuse, or precocious puberty.

You have to be very careful and very thorough here.

And newborns, I can imagine that would be terrifying for new parents.

It is, and it's a common panic point.

But the text reassures us.

Newborn girls may have little breast buds or a small amount of vaginal bleeding.

This is completely normal, and it's due to the withdrawal of maternal hormones after birth.

It resolves on its own within a few days.

Good to know.

And jumping to the menopause history again, the text gets really specific about hormone replacement therapy or HRT.

Yes.

This is all about expectations.

If a woman is on cycle hormones, meaning she takes estrogen every day and progesterone for part of the month, then scheduled predictable bleeding is expected.

That's normal.

Okay.

But if she's on a continuous therapy, taking both hormones every single day, she should become a minoraic, meaning no bleeding at all after about three to six months.

So if she starts bleeding again after that six -month mark.

That's a red flag.

You have to investigate.

The settling in period is over and any new bleeding is abnormal.

And this brings us to one of those really important evidence -based practice boxes in the text.

This one was specifically about estrogen and the risk of endometrial hyperplasia.

This is a crucial study, a landmark finding, really.

It reviewed clinical trials to see which hormone regimen protected the uterus best.

And the conclusion was stark.

Unopposed estrogen, meaning giving estrogen without any progesterone, significantly increases the risk of both endometrial hyperplasia and endometrial cancer in any woman with an intact uterus.

So the clinical takeaway is crystal clear.

If she has a urethra, she needs progesterone too.

Correct.

Estrogen is the fertilizer.

It stimulates the lining to grow.

Progesterone is the lawnmower.

It keeps that growth in check.

Without the lawnmower, you are basically inviting cancer to grow.

That's a great analogy.

All right.

We have gathered a massive amount of history.

We've got our suspicions.

Now we finally enter the exam room, section two, diagnostic reasoning and the focused physical examination.

And visualizing the exam is really important here.

You always start with a general assessment.

We mentioned the vital signs earlier.

Tachycardia and tachypnea could mean shock or a ruptured ectopic pregnancy.

But the text also puts a huge emphasis on body habitus, specifically obesity.

This ties right back to what we said about the HPO axis and systemic causes.

The text states that a BMI greater than 30 signals obesity.

But here is the critical mechanism.

Fat cells adipose tissue are not just inert storage depots.

They are hormonally active.

They actively convert a hormone called androsnidione into estran, which is a type of estrogen.

So the more fat cells a person has, the more circulating estrogen they have.

Exactly.

And that chronic excess estrogen from a non -ovarian source increases endometrial buildup, which leads to inovulatory cycles and dramatically increases the risk of endometrial cancer.

That really reframes obesity in this context, doesn't it?

It acts like an endocrine gland.

It's actively changing the patient's hormonal profile.

It does.

It's not a passive bystander in this process at all.

What else on the general exam are we looking for?

Well, we mentioned the thyroid.

You need to actually palpate the neck for enlargement or nodules.

And the breasts, you need to check for galacteria or nipple discharge.

If you find a clear or milky, non -bloody discharge, you might be dealing with hyperprolactinemia.

Which, again, messes with the whole cycle.

OK, let's get to the main event, the pelvic examination itself.

You start externally.

You inspect the vulva.

You look for any trauma or bruising.

Again, always keeping the possibility of abuse in mind.

You look for lesions like warts or cancerous growths.

And you look for any obvious signs of prolapse.

And signs of atrophy in older women.

Yes.

In postmenopausal women, you look for sparse pubic hair, clitoral atrophy, and thin, pale labia.

These are all signs of low estrogen.

Then we move to the internal exam, the speculum exam.

What are we looking for on the vaginal walls?

If you suspect atrophaginitis, the walls will be pale, shiny, and non -regated.

Meaning they've lost their normal folds.

They might even have little splotchy red patches called patechia.

The text also notes the discharge is often thin and whitish brown.

And the cervix itself.

You're looking for polyps.

The text describes them as these red, glossy, non -tender masses that are protruding right out of the cervix.

They can bleed very easily when touched.

And the cervical os, the opening of the cervix.

This is absolutely critical for distinguishing the different types of abortion, right?

It is the single deciding factor.

You have to carefully visualize and document if the os is closed or open.

We will explain exactly why in the differential diagnosis section.

But telling a threatened abortion from an inevitable one hinges entirely on this one finding.

You need to know if the door is open or closed.

Got it.

Closed versus open.

A crucial distinction.

And finally, the bimanual exam.

This is where you have two fingers inside the vagina and your other hand pressing on the abdomen.

Right.

You are feeling the size, shape, and consistency of the uterus and ovaries.

For an ectopic pregnancy, the text highlights the classic finding of cervical motion tenderness.

If just gently moving the cervix from side to side causes exquisite pain and you also feel a tender mass in the adnexa, the area next to the uterus, that is a very high -risk finding.

That's the famous chandelier sign.

Because the patient basically reaches for the ceiling in pain.

Exactly.

And for fibroids, what does that feel like?

You're feeling for a firm irregular uterus.

It feels lumpy and bumpy, not smooth.

The text uses weeks of gestation sizing to describe the size of a uterus with tumors.

Yes, because clinicians are very used to sizing pregnant uteruses.

A normal uterus is about 8 by 2 .5 centimeters.

But if a fibroid tumor makes the uterus feel like the size of a 12 to 14 -week pregnancy, the text says that's an indication for a referral to surgery.

And one more uterine finding adenomyosis.

How does that feel different?

This is a great distinction.

Adenomyosis feels very different than fibroids.

The text describes the uterus as being two to three times its normal size,

but globular with a uniform consistency rather than that your regular lumpy feel of fibroids.

It often feels soft and boggy.

That's a helpful distinction.

Lumpy versus globular.

Before we leave the physical exam, the text has another note on pediatric specifics.

Right.

You should use Canterist Aging to assess their pubertal progress.

And you need to carefully inspect for foreign bodies.

The text notes that foreign bodies, like a piece of toilet paper or a small toy, often cause a very malodorous or bad smelling discharge.

And there is a specific condition called urethral prolapse that's mentioned.

Yes, this can be confusing.

This presents as a circle of dark red, tender tissue right at the urinary metis, the opening of the urethra.

It can cause bleeding and needs to be carefully distinguished from vaginal bleeding, which is coming from a different opening.

And a very dark but necessary note, the text adds.

Infants under 12 months lack the motor coordination to insert foreign bodies themselves.

So if you find one in a child that young.

You have to suspect abuse.

It is a mandatory reporting situation.

Okay.

We've talked to the patient.

We've examined the patient.

Now we need hard data.

Section three, laboratory and diagnostic studies.

And the very first test is the obvious one, the pregnancy check,

the HCG.

The text breaks this down into qualitative and quantitative.

What's the difference?

Qualitative is your basic yes, no test.

A urine dipstick in the office is a qualitative test.

The text notes that a serum or blood test is more sensitive.

It can detect a pregnancy as early as six days after conception.

But the quantitative beta HCG gives us an actual number.

Why is the number so important?

It's important because it helps us track the health of the pregnancy and can be a huge clue when you're worried about an ectopic pregnancy.

The text gives us some key ranges.

A level less than five MIUML is considered not significant.

Greater than 25 is definitely significant for pregnancy.

And the doubling time.

This is the math you have to do in your head.

This is absolutely key for serial testing.

In a normal healthy intrauterine pregnancy, the HCG level should roughly double every 58 hours.

In an ectopic pregnancy, it might rise for a bit, but then it will plateau or even start to fall well before the four to six week mark.

So if you draw blood on a Monday and it's two puck and you draw it again on Wednesday and it's only 250.

You're worried.

You're very worried.

It strongly suggests the pregnancy isn't growing correctly or is in the right place.

Next up, other blood work.

The CBC or complete blood count.

You are obviously looking for anemia.

But specifically, the type of anemia tells a story.

Microcytic hypochromic anemia, small pale red blood cells, suggests chronic blood loss like from long term heavy periods.

The body is running out of iron.

Okay.

Normacytic normochromic anemia where the cells look normal, there just aren't enough of them, suggests an acute hemorrhage like a ruptured atopic or a major miscarriage.

The patient is bleeding out right now.

And the white blood count, the WBC.

An elevated WBC with a left shift, meaning more immature white blood cells, suggests an active infection pointing you toward a diagnosis like pelvic inflammatory disease or endometritis.

What about hormone levels?

The full endocrine workup.

This can feel a bit overwhelming, but the text breaks it down into the most high yield tests.

Let's just run through the key values the text provides.

Progesterone, a single level greater than 25 NGML is highly predictive of a healthy intrauterine pregnancy.

A level less than 15 NGML suggests an ectopic or a non -viable pregnancy.

FSH, follicle stimulating hormone.

If it's greater than 40 MIUML, that indicates ovarian failure or menopause.

The brain is basically screaming at the ovaries to work, but they aren't listening anymore.

And there is a specific note about finding high FSH in very young women.

Yes, if a woman under the age of 30 has both FSH and LH levels greater than 50, the text says you need to order a chromosomal analysis.

That's premature ovarian failure.

And you need to find out the underlying genetic reason why.

What about LH luteinizing hormone for PCOS?

In PCOS, the text says to look for a ratio.

An LH to FSH ratio that's greater than 2 to 1, or in some cases even 3 to 1, is very suggestive of polycystic ovarian syndrome.

The LH is just persistently high.

And DHEAS.

That's an androgen marker.

And levels greater than 200 GDL are common in PCOS.

Right.

This is what explains the hirsutism, the excess hair growth, and the acne.

One more hormone prolactin.

Right.

It's elevated in about a third of women who present with amenorrhea.

You always have to check this to rule out a pituitary tumor that could be secreting it.

Finally, imaging and procedures.

The text calls one of these the gold standard.

Transvaginal ultrasound, without a doubt.

It is the gold standard for measuring the endometrial thickness.

And in postmenopausal women, the cutoff is 5 millimeters.

Anything thicker than that needs to be investigated further.

And how do we investigate further?

With an endometrial biopsy.

The text says it has a sensitivity of 95 to 97 percent for detecting carcinoma.

It is indicated for any perimenopausal or postmenopausal abnormal bleeding.

And if that biopsy is inconclusive or doesn't give you a clear answer...

Then you move on to a DNC, or dilation curatige, or a hysteroscopy, which allows you to put a camera inside the uterus and look directly at the lining.

Okay.

We have done the entire work up.

Now we have to synthesize it all.

Section 4, the differential diagnosis.

This is really the heart of the chapter.

And the text structures this into three big buckets.

Organic causes, systemic causes, and then infection and other causes.

Let's start with the first bucket.

Organic and specifically pregnancy complications.

We've talked about spontaneous abortion or miscarriage.

The text defines this as a pregnancy loss happening before 20 weeks.

But it breaks it down into different types.

Threatened, inevitable,

incomplete.

How do we tell them apart on exam?

It all goes back to the combination of symptoms and what you see at the cervical loss.

In a general spontaneous abortion, you have cramping, bleeding, and often the passage of tissue.

If it's incomplete, it means some of that tissue remains inside the uterus.

A threatened abortion is when you have cramping and bleeding, but the cervical loss is still closed.

The pregnancy is threatened, but it hasn't been lost yet.

The door is still shut.

An inevitable abortion is when you have cramping and bleeding plus an open cervical loss.

The body is actively in the process of expelling the pregnancy.

It cannot be stopped.

The door is open.

That open versus closed check is absolutely vital.

It completely changes your counseling and management.

What about bleeding later in pregnancy?

The placenta issues.

The text gives a great contrast between placenta previa and placenta abruptio.

For placenta previa, this usually happens in the third trimester.

The key finding is bright red, completely painless bleeding.

And a crucial point about the exam.

A crucial point.

The text says in all caps basically do not perform a pelvic exam if you suspect this.

You can inadvertently puncture the placenta and cause a massive hemorrhage.

You confirm the diagnosis with an ultrasound first.

And abruptio.

Placenta abruptio is the opposite.

This is dark red, very painful bleeding.

The uterus feels rigid, hard as a rock, and is extremely tender to the touch.

This is the placenta tearing away from the uterine wall.

It's a true obstetrical emergency.

Then there is a big one.

Ectopic pregnancy.

The text calls this the leading cause of maternal death in the first trimester.

It is.

The classic symptoms are a period of amenorrhea followed by spotting, breast tenderness,

and then this classic one -sided abdominal pain that might radiate to the midline.

And if it ruptures, you might see signs like shoulder pain from the blood irritating the diaphragm or dizziness and fainting.

And there is another one of those evidence -based practice boxes here specifically about diagnosing an ectopic.

Yes, and it's a warning to all of us.

The study showed that your history and physical exam alone are insufficient to rule it out.

You must use a combination of transvaginal, ultrafound, and serial HCG levels.

You cannot guess with this diagnosis.

Moving on to organic causes that are not pregnancy -related.

The uterus itself.

Here we have fibroids, also called laeomyomas.

They're benign.

They're estrogen -dependent, so they shrink after menopause.

And on exam, they feel like firm, irregular masses.

Then we have adenomyosis, which is where the endometrial glands grow inside the muscle of the uterus.

This causes worsening menorrhagia and dysmetorrhea.

And finally, endometrial cancer, the most common GYN malignancy.

And what's the classic presentation for endometrial cancer?

A rapidly enlarging uterus in a postmenopausal woman, plus painless bleeding.

And the risk factors are all things that lead to excess estrogen.

Obesity, null parity, never having children lay the menopause, and taking unopposed estrogen.

Okay, that covers the big organic causes.

Bucket number two, systemic causes.

We've mentioned PCOS a few times.

Let's formalize that diagnosis now.

For PCOS, the text lists the classic triad of symptoms, obesity, hirsutism, and oligomanorrhea.

On ultrasound, you see the classic string of pearls, which are multiple small cysts on the ovaries.

And on labs, you see that high LH to FSH ratio.

And the thyroid again.

Right.

Hypothyroidism typically causes heavy bleeding, while hyperthyroidism causes scant or light bleeding.

And hyperprolactinemia.

That hyperlactin level inhibits gut autotropin release from the brain, which causes anovulation and often a manorrhea.

And finally, bucket number three, infections, both vaginal and pelvic.

The big ones here are atrophic vaginitis, which we see in postmenopausal women due to low estrogen.

The tissue is dry, pale, and the vaginal pH is greater than 4 .5.

It bleeds with even slight trauma, like wiping with toilet paper.

Then there's endometritis, which is an infection of the endometrium itself, often from chlamydia.

You'll see fever, uterine tenderness, and a bloody or purulent discharge.

And PID.

PID, or pelvic inflammatory disease, is when that infection spreads upward into the tubes and ovaries.

That's where you get that severe cervical motion, tenderness, the chandelier sign along with fever, and a high WPC count.

And we should also mention condylamata, or genital warts, which can bleed secondary to trauma.

And finally, the miscellaneous other category, and the blood dysgracias.

Right.

This is where you find von Willebrand disease, that factor eight deficiency.

You have to look for this in teenagers who have had extremely heavy periods right from monarch.

Also,

leukemia can present with abnormal bleeding, along with fatigue, bruising, and swollen lymph nodes.

And last but not least, a foreign body, which is most common in children, and usually presents with a foul -smelling discharge.

That is a massive, massive list of possibilities.

But the text provides a clear logic to get through it.

It does.

And that's really what I want listeners to take away from this deep dive.

The synthesis.

You don't just memorize this long list.

You follow the clinical reasoning flow that the chapter lays out for you.

Right.

It's a funnel.

Number one, is she stable?

That's your hemodynamics check.

Number two, is she pregnant?

That's your HCG.

Number three, how old is she?

That filters it into adolescent versus reproductive versus postmenopausal buckets.

And finally, number four, where is the bleeding likely coming from?

Is it the uterus, the cervix, or is it a systemic issue?

It really highlights the importance of those diagnostic reasoning tables they have throughout the text.

You can literally trace a finding,

like dark red painful bleeding in the third trimester, straight across the table to placenta or brupio.

It's pattern recognition that's built on a solid foundation of anatomy and physiology.

Before we wrap up, I want to leave our listeners with a final thought to chew on.

We talked a lot about obesity today, more than I expected to in a chapter on vaginal bleeding.

We did.

And I think the most provocative takeaway from this entire chapter is viewing obesity not just as a health marker or as a risk factor for heart disease or diabetes, but as an active endocrine organ.

Right.

It's not just sitting there, it's doing things.

It is actively taking androstenione and converting it into estrone, a form of estrogen.

It is fundamentally changing the patient's bleeding profile and dramatically increasing their cancer risk.

It really refames obesity as a primary hormonal driver in any gynecological assessment you do.

That is a very powerful perspective shift.

Well, we have unpacked chapter 36 from definitions all the way to differentials.

I really hope this helps you visualize the patient, the exam room, and the clinical reasoning process.

Thank you so much for joining this deep dive.

It was a pleasure to walk through such a critical and complex chapter.

A special thank you from the last minute lecture team.

Good luck with your studies, and we will see you on the next deep dive.