Understanding the clinical steps that help detect, define, and manage PCOS more effectively

Polycystic Ovary Syndrome (PCOS) is one of the most underdiagnosed endocrine disorders among Indian women. Its symptoms can be subtle, inconsistent, or dismissed as lifestyle issues — delaying diagnosis by years. This delay not only affects fertility but also increases the risk of long-term complications like diabetes, obesity, and cardiovascular disease.

Accurate and early diagnosis is the first step towards correcting PCOS symptoms and reducing future health risks. While PCOS cannot be "cured" in the traditional sense, understanding how it is clinically identified empowers women and doctors alike to act early and manage it better.

What Makes PCOS Diagnosis Challenging?

  • Symptoms vary widely — from irregular periods to acne to infertility
  • Presence of overlapping symptoms (e.g., lean PCOS)
  • Fluctuating hormone levels like androgen may present inconclusive results
  • Cultural stigma and lack of awareness lead to delayed screening
  • Many Indian women are diagnosed only during fertility planning

To ensure timely diagnosis, global and Indian guidelines now rely on specific criteria — supported by blood tests, ultrasounds, and hormone assessments.

Diagnostic Criteria: What Do Doctors Look For?

Most Indian gynaecologists follow the Rotterdam Criteria (endorsed by the ESHRE and ASRM), which require at least two out of the following three features for a PCOS diagnosis (1):

  1. Oligo-ovulation or anovulation

    → Irregular or absence of periods due to lack of egg release

  2. Clinical or biochemical hyperandrogenism

    → Excess male hormones leading to acne, facial hair, or abnormal testosterone levels

  3. Polycystic ovaries on ultrasound

    → Presence of 12 or more small follicles (2–9 mm in diameter) or increased ovarian volume (>10 mL) on either ovary

PCOS Tests Commonly Used in India

Here’s how doctors investigate each of these criteria through medical testing:

1. Menstrual Cycle Tracking

  • Doctors ask about period frequency, flow, and duration
  • A cycle longer than 35 days, fewer than 9 cycles per year, or no periods for 3+ months can signal ovulatory dysfunction

2. Hormonal Blood Tests

These help rule out other causes and confirm hyperandrogenism:

  • Total and Free Testosterone

  • Luteinising Hormone (LH) and Follicle-Stimulating Hormone (FSH)

    → High LH:FSH ratio (>2:1) is common in PCOS

  • Anti-Müllerian Hormone (AMH)

    → High AMH levels are often seen in PCOS patients

  • Prolactin and TSH to exclude thyroid and pituitary issues

Note: Hormone tests are best done in the early follicular phase (Day 2–5 of the cycle), or when not menstruating for months.

3. Pelvic Ultrasound

  • Transabdominal ultrasound is common in unmarried women
  • Transvaginal ultrasound (more accurate) is done in married or sexually active women
  • Ultrasound checks for multiple peripheral follicles and increased ovarian volume

Not all women with PCOS show visible cysts, so ultrasound is not diagnostic alone — it supports the Rotterdam Criteria (1).

4. Metabolic Screenings

Given the link between PCOS and insulin resistance, doctors may order:

  • Fasting glucose and insulin
  • HbA1c (glycated haemoglobin)
  • Lipid profile (cholesterol, triglycerides)

These help manage risks related to type 2 diabetes, heart disease, and non-alcoholic fatty liver disease (NAFLD).

Can PCOS Be Diagnosed in Teenagers?

Yes, but with greater caution. Hormonal fluctuations are common in adolescence. According to the International PCOS Guidelines, diagnosis in teenagers should only be made if:

  • Irregular periods persist for more than 2 years after menarche
  • Clinical signs like moderate-to-severe hirsutism or persistent acne are present
  • Ultrasound is avoided in teens under 8 years post-menarche 

Indian Context: What Tests Are Commonly Used?

In India, many gynaecologists rely on:

  • Serum testosterone and AMH
  • USG (pelvic ultrasound)
  • LH:FSH ratio
  • Complete menstrual history

However, accessibility and affordability may vary across urban and rural settings. That’s why the Correct PCOS approach emphasises on both educating and timely screening — helping Indian women understand when and what to test.

Correcting PCOS: Why Diagnosis Matters

Timely diagnosis is not just about naming a condition — it enables:

  • Fertility planning
  • Weight and skin management
  • Prevention of diabetes and metabolic disease
  • Mental health support

Correcting PCOS-related complications is possible through early action, consistent monitoring, and evidence-based care. The sooner a diagnosis is made, the better the outcomes — for hormones, health, and hope.

References

Frequently Asked Questions (FAQs)

1. How is PCOS diagnosed?

Doctors use the Rotterdam Criteria, which require two of three signs: irregular periods, high androgens, or polycystic ovaries on ultrasound.

2. What tests are done to confirm PCOS?

Hormone tests (testosterone, LH, FSH, AMH), pelvic ultrasound, and metabolic screens (glucose, insulin, lipids) are commonly used.

3. Can PCOS be diagnosed with just a blood test?

No. A combination of blood tests, menstrual history, and imaging is required.

4. Do all women with PCOS have cysts in their ovaries?

No. Polycystic ovaries are not mandatory for diagnosis — some women have normal scans but show other features and symptoms

5. When should a woman get tested for PCOS?

If periods are irregular, or if there are signs like facial hair, acne, or difficulty conceiving, a diagnostic evaluation should be done.