Is PCOS now called PMOS?

Yes. In 2026 an international consensus process involving 56 academic, clinical and patient organisations, and surveys of more than 14,000 people with the condition and health professionals, renamed polycystic ovary syndrome to polyendocrine metabolic ovarian syndrome (PMOS). The old name was judged inaccurate because it implies pathological ovarian cysts, which are present in around 20% of normally cycling women and are neither required for diagnosis nor the main problem, and because it hid the endocrine and metabolic features that matter most. Implementation is deliberately gradual, so both names remain in use and refer to the same condition. Every criterion, cutoff and study used in this calculator was published under the PCOS name and remains valid.

What is PCOS and how is it diagnosed?

PCOS is diagnosed using the Rotterdam 2003 criteria, at least 2 of 3 features must be present: irregular or absent periods (oligo/anovulation), signs of excess androgens such as hirsutism or acne (hyperandrogenism), and polycystic ovarian morphology on ultrasound. The 2023 ESHRE update defines PCO morphology as ≥20 follicles/ovary on high-resolution ultrasound (≥8MHz), OR ovarian volume ≥10mL. Blood tests including LH/FSH, testosterone, AMH and fasting insulin are required for complete assessment.

What is Lean PCOS and am I at risk?

Lean PCOS affects approximately 20% of women with PCOS and is characterised by BMI under 23 (South Asian cutoff) with confirmed Rotterdam PCOS criteria. Lean PCOS women often have normal fasting glucose but still have insulin resistance: detected only through HOMA-IR or glucose tolerance tests. Treatment differs from overweight PCOS: caloric restriction should be avoided; the focus is on resistance training, low-GI eating pattern, Myo-Inositol supplementation, and stress management rather than weight loss.

Can women with PCOS get pregnant naturally?

Yes: most women with PCOS can conceive with appropriate management. First-line treatment is lifestyle intervention: 5–10% body weight loss (for those with BMI ≥23) restores ovulation in 30–55% of women without medication. Myo-Inositol improves egg quality and ovulation rates. If lifestyle intervention over 3–6 months is insufficient, Letrozole (aromatase inhibitor) is the first-line medication per International Evidence-Based Guideline 2023, achieving ~27% cumulative live birth rate (per-cycle ~5–7%) (Legro et al. 2014). IVF is highly effective in PCOS: use GnRH agonist trigger to prevent OHSS. Age ≥35: seek reproductive medicine evaluation earlier (after 3–4 months of trying).

What tests should I ask my doctor for if I suspect PCOS?

Priority investigations per ESHRE 2023: LH + FSH on Day 2–5 of cycle (LH/FSH >2:1 is a Rotterdam marker). Total and free testosterone. AMH: specify Roche Elecsys assay (most Indian labs; cutoff 3.2 ng/mL) or Beckman Coulter Gen II (cutoff 4.7 ng/mL). Pelvic ultrasound on Day 3–5. Fasting insulin + fasting glucose for HOMA-IR calculation. HbA1c. TSH + Free T4 (to exclude hypothyroidism). 25-OH Vitamin D. Prolactin (to exclude hyperprolactinaemia). Lipid profile (LDL, HDL, triglycerides). Use the Clinician PDF from this calculator as a structured test request list.

How accurate is this PCOS calculator?

This tool is a validated symptom-based screening assessment using the same clinical frameworks as formal PCOS evaluation. It is designed to screen for features consistent with Rotterdam criteria. Tool accuracy varies by population and has not been formally validated in a clinical cohort: treat results as indicative, not diagnostic. However, it cannot replace a clinical examination, blood tests, and pelvic ultrasound. False negatives occur when symptoms are masked by medication (e.g., OCP, Isotretinoin). False positives can occur when PCOS-mimicking conditions (hypothyroidism, hyperprolactinaemia, CAH) are undetected. Use this report to prepare for your clinical appointment, not as a final diagnosis.

PCOS/PMOS Risk Calculator for Indian Women

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PCOS/PMOS Risk
Assessment

Demographics & Clinical Context About you

Menstrual History: Rotterdam Criterion 1 Your period history

Hyperandrogenism: Rotterdam Criterion 2 Excess hair, skin & hair loss

Insulin Resistance & Metabolic Assessment Blood sugar & metabolism

Hormonal & Clinical History: Rotterdam Criterion 3 Blood test & scan results

Lifestyle, Stress & Mental Health Daily habits & wellbeing

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Demographics & Clinical Context About you

Menstrual History: Rotterdam Criterion 1 Your period history

Hyperandrogenism: Rotterdam Criterion 2 Excess hair, skin & hair loss

Insulin Resistance & Metabolic Assessment Blood sugar & metabolism

Hormonal & Clinical History: Rotterdam Criterion 3 Blood test & scan results

Lifestyle, Stress & Mental Health Daily habits & wellbeing

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