Chapter 19: Reproductive & Genetic Disorders in Children

Reproductive & Genetic Disorders in Children begins with a detailed review of female and male reproductive anatomy and physiology, addressing the hormonal regulation of the menstrual cycle and common irregularities such as primary and secondary amenorrhea, menorrhagia, and dysmenorrhea. The text explores frequent pediatric genital complaints, including vulvovaginitis, bacterial vaginosis, phimosis, paraphimosis, cryptorchidism, and surgical emergencies like testicular torsion, while also outlining the risks and benefits of procedures such as circumcision. A significant portion of the chapter is dedicated to adolescent sexual health, emphasizing screening protocols and nursing interventions for sexually transmitted infections (STIs) like chlamydia, gonorrhea, trichomoniasis, syphilis, and pelvic inflammatory disease (PID), alongside a framework for providing inclusive, gender-affirming care to transgender and gender-diverse youth through puberty blockers and psychosocial support. The second half of the chapter transitions into genetics, explaining the fundamental processes of mitosis and meiosis to elucidate the etiology of chromosomal errors and inheritance patterns. It offers in-depth clinical guidance on managing major genetic syndromes, particularly Trisomy 21 (Down syndrome), by detailing its associated multisystemic complications—such as congenital heart defects and gastrointestinal anomalies—and the required lifelong health surveillance. Furthermore, the summary covers a vast array of specific genetic conditions, including Trisomy 18 and 13, Turner syndrome, deletion syndromes like Cri du Chat and Williams syndrome, metabolic disorders such as Phenylketonuria (PKU), and neurocutaneous conditions including Neurofibromatosis and Tuberous Sclerosis Complex. It concludes with an overview of neuromuscular and skeletal disorders like Duchenne muscular dystrophy, Spinal Muscular Atrophy (SMA), and Achondroplasia, as well as X-linked and imprinting disorders like Fragile X, Prader-Willi, and Angelman syndromes, and teratogenic effects seen in Fetal Alcohol Spectrum Disorder (FASD).