Polycystic Ovary Syndrome (PCOS): Symptoms, Causes & Treatment

Polycystic Ovary Syndrome (PCOS) is a common endocrine disorder affecting an estimated 5–10% of reproductive-aged women worldwide, representing one of the most prevalent hormonal conditions in women. It is characterized by three main features: irregular or absent menstrual periods due to anovulation, elevated androgens (male hormones) causing visible symptoms such as excess hair and acne, and multiple small cysts visible on ovarian ultrasound.

The exact etiology remains unclear, but research highlights the roles of insulin resistance, chronic inflammation, and genetic factors. PCOS significantly impacts fertility and is associated with serious health complications including type 2 diabetes, hypertension, and cardiovascular disease if inadequately managed. In Jordan and the Middle East, PCOS is a leading cause of menstrual irregularity and relative infertility, requiring careful clinical evaluation and personalized management strategies.

Diagnosis relies on specific criteria (Rotterdam or NIH criteria) combining clinical examination, hormonal assays, and transvaginal ultrasound findings. Management is multifaceted, focusing on symptom control, improving insulin sensitivity, and optimizing fertility outcomes when desired.

PCOS symptoms vary significantly among women in severity and presentation; not all women experience all symptoms. Symptoms typically emerge during adolescence or early twenties but may be identified at any age. Hormonal and reproductive symptoms are most common and impactful on quality of life.

• Irregular menstrual periods: Infrequent periods, widely spaced cycles, or extended amenorrhea (absence of periods for months).
• Excessive hair growth (hirsutism): Dark or coarse hair on face, chest, abdomen, and back due to elevated androgens.
• Acne and oily skin: Acne on face, chest, and back, particularly along jawline and neck.
• Hair loss from scalp: Thinning hair or androgenic alopecia on the scalp.
• Darkened skin patches (acanthosis nigricans): Dark, velvety skin thickening typically in groin, axillae, and neck from insulin resistance.
• Weight gain or difficulty losing weight: Especially abdominal obesity, linked to insulin resistance.
• Infertility or difficulty conceiving: Anovulation leads to natural fertility challenges.
• Pelvic pain: Pain in lower abdomen or pelvis, particularly during or before menstruation.
• Fatigue and low energy: Persistent tiredness and reduced vitality.
• Cognitive difficulties and mood changes: Difficulty concentrating and remembering, depression, and anxiety (linked to hormonal and metabolic dysregulation).

• Insulin resistance: Approximately 70% of PCOS patients have insulin resistance, leading to elevated insulin levels that stimulate the ovaries to produce excess androgens.
• Low-grade chronic inflammation: PCOS patients have higher inflammatory markers, which may stimulate ovarian dysfunction and is associated with cardiovascular disease risk.
• Genetic factors: Family history of PCOS or diabetes significantly increases risk, indicating a strong hereditary component.
• Abnormal gonadotropin secretion: Disrupted FSH and LH levels impair normal follicle maturation and ovulation patterns.
• Environmental and dietary factors: Sedentary lifestyle, refined carbohydrates, and high sugar intake may contribute to PCOS development and symptom severity.
• Chronic stress: May disrupt hormonal balance and menstrual regularity, exacerbating PCOS symptoms.
• Obesity or overweight: Associated with elevated insulin and androgens, though PCOS also occurs in lean women.

• Family history: First-degree relatives (mother or sister) with PCOS significantly increase risk.
• Obesity: BMI > 25 or ≥ 30 increases symptom severity and complication risk.
• Existing insulin resistance: Women with pre-existing insulin resistance or type 2 diabetes are at higher risk.
• Sedentary lifestyle: Lack of physical activity increases PCOS-related complications.
• Poor diet: High intake of refined carbohydrates, added sugars, and saturated fats.
• Race and ethnicity: Some studies indicate higher prevalence in Asian and African descent populations.
• Fetal chemical exposure: Intrauterine exposure to BPA and pesticides may increase risk.
• Chronic psychological stress: Affects hormonal and immune balance, increasing symptom manifestation.
• Poor sleep quality: Inadequate or disrupted sleep impairs metabolic and hormonal regulation.

PCOS diagnosis relies on specific criteria after excluding other conditions with similar presentations. The Rotterdam 2003 criteria, most widely used, require two of three features: oligo- or anovulation, clinical and/or biochemical hyperandrogenism, and polycystic ovarian morphology on ultrasound, after excluding secondary causes. Diagnosis requires comprehensive evaluation including medical history, clinical examination, hormonal assays, and imaging.

• Clinical examination: Assessment of hirsutism severity (Ferriman-Gallwey scoring), acne, alopecia, acanthosis nigricans, BMI, and blood pressure measurement.
• Hormonal testing: Serum LH, FSH, LH:FSH ratio (typically > 2–3), free or total androgens (total testosterone > 70 nmol/L is elevated), 17-hydroxyprogesterone to rule out adrenal enzyme deficiency.
• Insulin and glucose metabolism: Fasting insulin and glucose, oral glucose tolerance test (OGTT), HOMA-IR > 2.0 indicating insulin resistance.
• Additional biochemical tests: Liver and renal function, lipid panel (cholesterol, triglycerides), prolactin (to exclude hyperprolactinemia).
• Transvaginal ultrasound (preferred): Follicle count ≥ 12 per ovary (2–9 mm diameter), ovarian volume ≥ 10 cm³.
• Additional tests as indicated: Thyroid function if indicated, fertility workup if infertility is primary complaint.

Medications

• Combined oral contraceptives: First-line for non-pregnancy-seeking patients, regulate menstrual cycles, reduce androgens, and improve skin. Progestin-dominant or androgen-antagonist formulations (drospirenone, cyproterone acetate) may be more effective.
• GnRH agonists/antagonists: Reserved for severe cases, typically combined with add-back therapy to minimize side effects.
• Metformin: Improves insulin sensitivity, modest weight loss (2–3 kg), and may enhance ovulation. Typical dose 1500–2000 mg daily in divided doses.
• Letrozole: First-line ovulation induction for pregnancy-seeking women, more effective than clomiphene in PCOS.
• Gonadotropins (FSH/hCG): Injectable hormones for controlled ovulation stimulation when oral agents fail or for assisted reproduction.
• Androgen antagonists (Spironolactone): 50–100 mg daily to reduce hirsutism and acne, often combined with oral contraceptives.
• Clomiphene citrate: Ovulation induction agent for fertility-seeking women.
• Myo-inositol: Natural compound improving insulin sensitivity and ovulation; often paired with folic acid.

Procedures

• Ovarian drilling (laparoscopic): Rarely performed now; mechanically reduces androgen production. Considered only after medical and fertility therapies fail.
• IVF/ICSI: For severe infertility despite medical and lifestyle interventions; higher success rates than natural conception.
• Oocyte preservation/egg freezing: Option for young patients desiring fertility preservation.

Lifestyle Modifications

• Dietary management: Low glycemic index diet, high fiber (25–30 g/day), lean protein, minimal added sugars and refined carbohydrates. Mediterranean or ketogenic diets (under supervision) may benefit some.
• Physical activity: 150 minutes/week moderate-intensity aerobic exercise (brisk walking, swimming) plus 2–3 sessions/week resistance training improve insulin sensitivity and weight loss.
• Weight management: 5–10% weight loss significantly improves symptoms, menstrual regularity, and fertility.
• Stress reduction: Yoga, meditation, cognitive behavioral therapy (CBT) improve mental health and hormonal balance.
• Sleep optimization: 7–9 hours nightly of consistent, quality sleep; screen avoidance before bedtime.
• Caffeine and alcohol reduction: May help normalize hormones and improve fertility outcomes.
• Regular monitoring: Check-ups every 6–12 months to assess weight, blood pressure, glucose, and lipids.

• Type 2 diabetes mellitus: PCOS patients have 10-fold higher risk before age 40. Early detection and preventive strategies (diet, exercise, metformin) are critical.
• Cardiovascular disease: Hypertension, dyslipidemia, obesity, and chronic inflammation compound cardiac risk. Cardiovascular disease incidence is 2–3 times higher than in non-PCOS women.
• Primary and secondary infertility: Anovulation causes infertility in 30–40% of PCOS patients; many require advanced fertility treatments.
• Obesity and insulin resistance: 50–70% of PCOS patients are overweight or obese, leading to serious metabolic complications.
• Sleep-disordered breathing: Elevated risk of obstructive sleep apnea, particularly in obese patients.
• Depression and anxiety: 2–3 times higher prevalence, linked to hormonal dysregulation, infertility-related stress, and social stigma.
• Endometrial cancer: Unopposed estrogen from anovulation increases endometrial hyperplasia and cancer risk (relatively rare with appropriate progestin protection).

• Maintain healthy weight: BMI 18.5–24.9 reduces PCOS and complication risk; gradual weight loss if needed.
• Regular physical activity: 150 min/week aerobic exercise improves insulin sensitivity and reduces diabetes and CVD risk.
• Balanced, nutrient-dense diet: High fiber, whole grains, fruits, vegetables, lean protein; minimize added sugars and refined carbs.
• Stress management: Relaxation techniques, yoga, meditation, and psychological support improve overall health and hormonal balance.
• Adequate, regular sleep: 7–9 hours nightly supports hormonal homeostasis.
• Avoid smoking and excess alcohol: Smoking increases inflammation and androgens; alcohol impairs liver and metabolic function.
• Screening for at-risk populations: Women with family history or early symptoms should be screened regularly for early PCOS detection.
• Minimize environmental toxin exposure: Reduce BPA and pesticide exposure, especially during pregnancy.
• Breastfeeding (offspring): May reduce PCOS risk in offspring.
• Early medical consultation: Seek specialist care promptly if irregular periods, excessive hair growth, or persistent acne develop.