🔑 Key Takeaways — PCOS
- ✅ PCOS affects 1 in 10 women of reproductive age, making it the most common endocrine disorder in women
- ✅ Insulin resistance is present in up to 70% of women with PCOS
- ✅ Losing just 5–10% of body weight can restore ovulation in overweight women with PCOS
- ✅ Inositol (especially myo-inositol) has strong clinical evidence for improving PCOS symptoms
- ✅ PCOS increases lifetime risk of Type 2 diabetes by up to 7x
🏷️ Category: Women’s Health
Reviewed by our Editorial Team — Evidence from Endocrine Society PCOS guidelines and peer-reviewed reproductive endocrinology research.
PCOS affects 1 in 8 to 1 in 10 women of reproductive age — making it the most common hormonal disorder in women worldwide. Despite this, the average woman waits 2+ years for a correct diagnosis. Beyond its reproductive effects, PCOS significantly raises risk of type 2 diabetes, cardiovascular disease, and mental health disorders. This guide explains what PCOS is, how to get diagnosed, and every evidence-based management option available.
What Causes PCOS?
PCOS is primarily driven by insulin resistance (present in 70–80% of cases) and elevated LH, which together over-stimulate the ovaries to produce excess androgens. This disrupts ovulation, causing irregular or absent periods. Genetics play a significant role — having a mother or sister with PCOS significantly increases your risk.
PCOS Symptoms to Watch For
- Irregular, infrequent or absent periods
- Excess facial or body hair (hirsutism)
- Jawline or chin acne
- Hair thinning or shedding
- Difficulty losing weight despite effort
- Skin darkening in folds (acanthosis nigricans)
- Subfertility or difficulty conceiving
- Anxiety and depression (significantly more common in PCOS)
Diagnosis: The Rotterdam Criteria
PCOS is diagnosed with at least 2 of 3: irregular ovulation, clinical or biochemical hyperandrogenism, and polycystic ovarian morphology on ultrasound. Essential blood tests: LH, FSH, oestradiol, testosterone, DHEA-S, SHBG, fasting insulin, glucose, and thyroid panel.
Evidence-Based PCOS Management
Diet: Low-Glycaemic and Anti-Inflammatory
A low-glycaemic, high-fibre, Mediterranean-style diet is the most evidence-backed approach — reducing insulin levels, lowering androgens, and improving ovulatory frequency. High-glycaemic foods and dairy consistently worsen PCOS symptoms in research.
Exercise: Strength + Cardio
A 2020 Cochrane review found exercise reduced fasting insulin by 4.07 µIU/mL and testosterone by 0.71 nmol/L in PCOS. Aim for 150 minutes weekly including at least 2 resistance training sessions.
Top Supplements for PCOS
- Inositol (Myo + D-chiro, 40:1 ratio): Most evidence-backed supplement — improves insulin sensitivity, reduces androgens, restores ovulation. Efficacy comparable to metformin in RCTs
- Berberine: Metformin-like insulin-sensitising effects; multiple clinical trials confirm PCOS benefits
- Vitamin D: Deficient in 67–85% of PCOS cases; supplementation improves insulin sensitivity and menstrual regularity
- NAC (N-Acetyl Cysteine): Improves insulin sensitivity and ovulation rates
Medical Treatments
- Combined pill: First-line for period regulation and androgen symptoms (acne, hirsutism)
- Metformin: Improves menstrual regularity and reduces androgens, especially with metabolic features
- Letrozole: Most effective ovulation induction for women trying to conceive (pregnancy rate ~27–28% per cycle)
- Spironolactone: For hirsutism and acne — blocks androgen receptors
Frequently Asked Questions
Can women with PCOS get pregnant?
Yes — most women with PCOS can conceive. Letrozole for ovulation induction is highly effective. IVF is available when other treatments are unsuccessful.
Does PCOS go away after menopause?
Androgen-related symptoms often improve as natural androgen levels decline. However, the metabolic features (insulin resistance, cardiovascular risk) persist and need ongoing management.
What is the best diet for PCOS weight loss?
Low-glycaemic, high-protein, high-fibre diets perform best. Even 5–10% weight loss dramatically improves PCOS symptoms and metabolic markers in overweight women.
Conclusion
PCOS is very manageable with the right approach. Targeted diet changes, strategic exercise, inositol supplementation, and good sleep can produce remarkable results. Work with a knowledgeable gynaecologist or endocrinologist to develop a plan tailored to your goals — whether regular periods, clear skin, or a healthy pregnancy.
Medical Disclaimer: PCOS management requires personalised medical guidance. This article is for informational purposes only.
📚 Medical Sources & References
This article is based on evidence from the following authoritative medical sources:
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