Hair Fall in Women in Chennai: PCOS, Thyroid, Iron & What Actually Helps

How does PCOS cause hair loss?

In PCOS, the body often makes more androgens (male-type hormones). In women whose follicles are sensitive to them, androgens gradually shrink hair at the crown and parting. This is a slow thinning rather than sudden shedding, and it often comes with acne, irregular periods or extra facial hair.

The link is real but not universal. A 2025 meta-analysis found that roughly one in five women with PCOS had female pattern hair loss, and about one in three women with pattern hair loss had PCOS – though the authors rated the certainty of the evidence as very low (PMC12481967). A 2022 review also describes PCOS as one of the conditions to check in any woman with pattern thinning (PubMed 36226726).

Treating PCOS-related hair loss usually means working on both ends: your gynaecologist or physician manages the hormones, cycles and weight, while the dermatologist treats the scalp. Weight loss of even a few kilos can improve hormone balance in many women with PCOS – our doctor-led weight loss clinic can help if this is part of your plan. If PCOS also causes chin or upper-lip hair, see our page on facial hair reduction.

Can thyroid problems cause hair fall?

Yes. Both an underactive and an overactive thyroid can cause diffuse hair thinning across the whole scalp, and sometimes thinning of the outer eyebrows. The good news is that thyroid-related hair fall usually improves once thyroid levels are brought back to normal with treatment, although regrowth takes several months.

The American Academy of Dermatology lists hair thinning, dry hair and brittle nails among the skin and hair signs of thyroid disease (AAD). If you are already on thyroid tablets and still losing hair, ask whether your dose is right – and do not stop or change it on your own. Hair often takes 3 to 6 months to settle after levels become normal.

Is my hair fall due to low iron, vitamin D or B12?

Low iron stores are common in Indian women, especially with heavy periods, pregnancy or a vegetarian diet, and doctors often check them in women with hair fall. Vitamin B12 and vitamin D are also commonly tested. Correct only what a test shows is low – taking random high-dose supplements does not regrow hair and can cause harm.

Ask your doctor about a ferritin test (iron stores), not just haemoglobin, because you can have normal haemoglobin and still have low iron stores. Protein intake also matters: crash diets and very low-calorie plans are a common trigger for shedding. Our guide to high-protein vegetarian foods may help if you follow a vegetarian diet.

Why is my hair falling out after delivery or a fever?

This is usually telogen effluvium – a temporary shift of many hairs into the shedding phase. It starts about 2 to 4 months after a trigger such as childbirth, dengue or typhoid fever, surgery, crash dieting or severe stress. It looks alarming, but most women regrow their hair within 6 to 12 months once the trigger has passed.

Post-pregnancy shedding typically peaks around 3 to 4 months after delivery. It is worth checking iron and thyroid at this point, because both are often affected after pregnancy. If shedding continues beyond 6 months, or you notice the parting widening, there may be underlying pattern hair loss that the shedding has uncovered. In the rainy season, an itchy, flaky scalp can add to the problem – see our monsoon hair fall guide and anti-dandruff treatment page.

What is female pattern hair loss?

Female pattern hair loss is gradual thinning over the top of the scalp with a widening central parting, while the front hairline usually stays. It is the most common cause of long-term hair loss in women, often runs in families, and can start in the twenties or after menopause. Early treatment helps keep the hair you have.

According to the American Academy of Dermatology, other causes can look like pattern hair loss, so they should be ruled out first. That is why a scalp examination and blood tests come before any procedure.

What tests should a woman do for hair fall?

Your doctor will choose tests based on your history, but common ones for women with hair fall are a complete blood count, ferritin (iron stores), thyroid tests (TSH), vitamin B12 and vitamin D. If PCOS is suspected, hormone tests and a pelvic ultrasound may be advised, usually with a gynaecologist.

A good hair assessment also includes a close look at the scalp (often with a dermatoscope), a gentle pull test, and questions about diet, periods, medicines, recent illness and family history. Bring any old reports and the names of products and tablets you have used.

How is hair fall in women treated at VK Allure?

Treatment starts with finding the cause. The doctor corrects any deficiency or hormone problem with your other doctors, treats scalp conditions such as dandruff, and then plans hair-specific care. This may include prescribed topical or oral medicines and, for suitable women with pattern thinning, in-clinic options like PRP, GFC or mesotherapy.

1. Hair and scalp assessmentHistory, scalp examination and review of your blood reports, or a list of tests to do.
2. Treat the triggerIron, thyroid, PCOS, diet or scalp infection are addressed first, with referral where needed.
3. Medical hair treatmentPrescribed treatment for pattern thinning, chosen with your pregnancy plans in mind.
4. In-clinic support, if suitableHair PRP, GFC therapy, hair mesotherapy or low-level laser therapy.
5. Review and photosProgress is checked every few months; hair cycles are slow, so judge results at 3 to 6 months.

In-clinic procedures do not replace treating the cause. They work best for women whose follicles are still active. Some hair loss medicines are not safe in pregnancy or while trying to conceive, so always tell the doctor about your plans. Read more on our main hair loss treatment page.

What can I do at home to reduce hair fall?

Eat enough protein, avoid crash diets, wash your scalp regularly with a mild shampoo, dry it properly in humid weather, and avoid tight hairstyles and frequent heat styling. Do not start random supplements or hormone tablets on your own. These steps support treatment but cannot reverse PCOS, thyroid or pattern hair loss by themselves.

Oiling is fine if you like it, but keep it light and wash it off – heavy oil left overnight on a flaky scalp can worsen dandruff. Simple kitchen masks such as curd for hair can condition hair, but they do not treat the cause of hair fall.

When should I see a dermatologist for hair fall?

See a dermatologist if hair fall lasts more than 3 months, your parting is widening, you notice bald patches, the scalp is itchy or painful, or hair fall comes with irregular periods, acne, chin hair or tiredness. Early assessment matters because pattern thinning is easier to slow down than to reverse.

You can see our doctors at any of the three VK Allure branches: Kilpauk, ECR Uthandi or Ambattur. Bring your recent blood reports if you have them. Message us on WhatsApp at +91 96009 58060 to book.

Sources: 2025 meta-analysis on female pattern hair loss and PCOS (PubMed Central); Review: female pattern hair loss and polycystic ovary syndrome, 2022 (PubMed); American Academy of Dermatology – Female pattern hair loss; American Academy of Dermatology – Thyroid disease: skin, hair and nail changes.