Genitourinary and Gynecological Systems

Chapter 9: Genitourinary and Gynecological Systems

Lecture Agenda

  • Overview of core topics

    • Structures and functions of the genitourinary and gynecological systems

    • General signs and symptoms of associated disorders

    • Medical history and physical examination considerations

    • Etiology of common pathologies

    • Clinical presentation including signs and symptoms

    • Treatment options

    • Prevention strategies where applicable

Anatomy of the Kidneys, Ureters, and Urinary Bladder

  • Typical human anatomy consists of:

    • 2 kidneys

    • 2 ureters

    • 1 urinary bladder

  • Location of kidneys:

    • Positioned posterior to the peritoneum

    • Located alongside the spine and against the psoas major muscles

  • Primary functions of kidneys:

    • Removal of excess water

    • Excretion of salts

    • Elimination of metabolic waste from the blood

  • Waste product processing:

    • Waste is processed into urine

    • Urine is transported via ureters to the urinary bladder

Anatomy of the Urinary Bladder

  • Structures associated with the urinary bladder:

    • Anterior wall of bladder

    • Intraurethral fold

    • Urachus

    • Peritoneum

    • Ureter orifices

    • Internal urethral orifice

    • Prostatic utricle

    • Ejaculatory duct openings

    • Membranous urethra

  • Muscle composition:

    • Detrusor muscle supporting bladder function

    • Trigone area of the bladder

  • Nearby male structures:

    • Ductus deferens

    • Seminal vesicle

    • Prostate gland and its urethra

    • Bulbourethral gland

    • Bulbus penis

Male Genital Anatomy

  • Key components:

    • Penis

    • Ejaculatory duct

    • Prostate gland

    • Paired testes (each with an epididymis)

    • Ductus or vas deferens

    • Seminal vesicles

Female Genital Anatomy

  • Major structures:

    • Ovaries

    • Fallopian tubes

    • Uterus

    • Urinary bladder

    • Mons pubis

    • Clitoris

    • Urethral meatus

    • Vagina and its rugae

    • Labia minora and labia majora

  • Additional structures:

    • Rectouterine pouch

    • Cervix

    • Rectum and anus

  • Layers of the uterus:

    • Endometrium (inner layer)

    • Myometrium (muscular layer)

    • Perimetrium (outer layer)

  • Cervix and cervical canal anatomy

Medical History Considerations

  • Personal history factors to note:

    • Untreated urinary infections

    • Sexually transmitted infections (STIs)

    • Diabetes

    • Hypertension

    • Sickle cell anemia

    • Use of contraceptives

    • Exposure to toxins

  • Family history considerations:

    • Renal diseases

    • Kidney stones

    • Family history in women:

    • Age of menarche

    • Menstrual history

    • Breast cancer

  • Recommendations for regular self-examinations and professional conduct

Signs and Symptoms to Observe

  • Common indicators:

    • Hematuria (blood in urine)

    • Changes in urinary habits

    • Hypertension

    • Anemia

    • Sexual dysfunction

    • Menstrual irregularities

Physical Examination Techniques

  • Inspection and palpation:

    • Edema observed in extremities

    • Palpation of the right kidney may sometimes be possible, near vertebral column below 12th rib

  • Laboratory tests:

    • Urinalysis using a dipstick

    • Refractometry to measure urine specific gravity

    • This provides an accurate and objective measure of hydration status

Kidney Stones (Urolithiasis)

  • Etiology:

    • Formation due to excess insoluble salts (calcium or uric acid) in kidney filtrate

    • Solid masses can form and obstruct flow or irritate the urinary tract

  • Signs and symptoms:

    • Severe, unilateral flank pain radiating to the anterior thigh

    • Nausea/vomiting (N/V)

    • Pallor and tachycardia

  • Treatment options:

    • Small stones: pain management and intravenous (IV) fluids

    • Large stones: treatment may involve ultrasound, laser lithotripsy, or surgery

Urinary Tract Infection (UTI)

  • Overview:

    • Most frequent bacterial infection in ambulatory care

    • Affects either the upper or lower urinary tract

    • Commonly impacts the urinary bladder but can also involve urethra, ureters, and kidneys

  • At-risk populations:

    • Any person can develop a UTI, but sexually active young women are particularly at risk due to:

    • Shorter urethra

    • Delay in urination after intercourse

    • Use of diaphragms

  • Signs and symptoms:

    • Dysuria (painful urination)

    • Increased frequency of urination (polyuria)

    • Voiding small amounts of urine

    • Lower pelvic discomfort

  • Laboratory findings:

    • Urinalysis may show nitrates and leukocytes

  • Treatment:

    • Uncomplicated UTI: antibiotics

    • Recurrent UTIs: urine culture and narrow-spectrum antibiotics

  • Prevention strategies:

    • Urinate post-intercourse

    • Wear breathable cotton underwear

    • Increase fluid consumption

    • Consider cranberry juice or supplements (possible efficacy unclear)

Sexually Transmitted Infections (STIs) and Sexually Transmitted Diseases (STDs)

  • Definition and distinction:

    • Both conditions passed through sexual contact; infected individuals may show no symptoms.

    • STI: infection not yet developed into a disease

    • STD: disease resulting from an STI

  • Common STIs and STDs:

    • Human papillomavirus (HPV, genital warts)

    • Syphilis

    • Gonorrhea

    • Chlamydia

    • HIV/AIDS

    • Herpes 2

Treatment and Characteristics of Common STIs

  • Overview of various conditions:

    • HIV:

    • Incubation: 1-6 months

    • Transmission: sexually transmitted

    • Treatment: zidovudine (ZDU) for maintenance

    • Signs: malaise, fever, and sexual contact history

    • HPV:

    • Treatment: symptomatic management

    • Manifestations: genital warts

    • Syphilis:

    • Incubation: 1-6 months

    • Treatment: penicillin

    • Symptoms: chancre sores and dermatological signs

    • Gonorrhea:

    • Incubation: Men: 2-14 days; Women: 7-21 days

    • Symptoms: dysuria and discharge

    • Treatment: ceftriaxone, doxycycline

    • Chlamydia:

    • Incubation: 7-28 days

    • Symptoms: dysuria, meatal itching, sometimes asymptomatic

    • Treatment: tetracycline or doxycycline

    • Herpes Simplex Virus (HSV):

    • Incubation: 4-7 days

    • Symptoms: lesions

    • Treatment: acyclovir

  • Summary of significant symptoms:

    • Symptoms affect males and females differently, with males showing more obvious signs due to anatomical differences.

    • Symptoms in women often resemble UTI signs.

Herpes Simplex Virus

  • Classification:

    • HSV-1: oral herpes (cold sores, fever blisters)

    • HSV-2: genital herpes

  • Transmission:

    • Highly contagious, possible transmission through both sexual and non-sexual contact (e.g., sharing chapstick)

  • Symptoms:

    • Localized clusters of vesicles that may break, leaving tender red sores that crust

    • Outbreaks may be preceded by skin burning or itching

  • Treatment:

    • New and active lesions managed with antiviral medications (e.g., valacyclovir)

    • Antiviral treatments shorten duration and reduce transmission risk

    • Not curable.

Prevention Strategies for STIs

  • Recommendations:

    • Utilize barrier protection during sexual intercourse.

    • Be informed about partners' medical histories.

    • Avoid behaviors that increase risk (e.g., multiple partners, unsafe sexual practices, excessive alcohol consumption).

    • Abstain from sexual contact during active infection periods.

STD Reporting Requirements

  • Mandate for reporting:

    • STD and HIV/AIDS cases should comply with state and local statutory requirements.

    • Diseases reportable in every state include:

    • Syphilis

    • Gonorrhea

    • Chlamydia

    • HIV

    • Chancroid (associated with HIV transmission)

  • California-specific reporting:

    • Healthcare professionals are required to report specified conditions without patient consent due to public health considerations.

Testicular Torsion

  • Etiology and pathophysiology:

    • Rotation of the testicles resulting in spermatic cord twisting

    • Compression leads to arterial and venous occlusion

  • Signs and symptoms:

    • Testicular pain and vomiting

    • Elevation of the affected testicle

  • Treatment:

    • Emergency surgery is often required to correct

Varicocele

  • Definition:

    • Varicose veins occurring in the scrotum

  • Etiology:

    • Faulty venous valves along the spermatic cord lead to blood pooling

  • Symptoms:

    • Sensation of heaviness or tenderness, particularly pronounced when standing

    • Appearance described as a "bag of worms"

  • Treatment:

    • Surgical intervention for correction

Pelvic Inflammatory Disease (PID)

  • Etiology:

    • Infection of the reproductive tract, often caused by Chlamydia and Gonorrhea

  • Symptoms:

    • Abdominal pain, high-grade fever, nausea, and purulent or bloody discharge

  • Treatment:

    • Antibiotic therapy generally recommended

Amenorrhea - Primary

  • Definition:

    • Absence of menstruation by age 15

  • Common causes:

    • Hormonal dysfunction (e.g., deficient or absent GnRH)

    • Influences such as high-intensity athletic training

  • Potential underlying causes:

    • Chromosomal or genetic issues with ovaries

    • Dysfunction of hypothalamus or pituitary gland

    • Structural anomalies in reproductive organs

Amenorrhea - Secondary

  • Definition:

    • Absence of 3 or more consecutive menstrual cycles after previously normal menstruation

  • Most prevalent cause:

    • Pregnancy is the most common reason

  • Contributing factors:

    • Contraceptives, medications, low body weight, poor nutrition, excessive exercise, stress, PCOS, thyroid malfunction, pituitary tumor, premature menopause, ovarian tumor