The Testosterone Blueprint
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Women

Why is my hair thinning in menopause?

Yes, thinning hair is a common menopause symptom, caused mainly by falling oestrogen, which helps hair grow, and a shift in its balance with androgens.

Oestrogen keeps hair in its growing phase longer and supports thickness. As it falls in perimenopause and menopause, hair can grow more slowly, become finer and shed more, typically a diffuse thinning across the crown and parting rather than bald patches. At the same time, the relative influence of androgens, the male-type hormones women also have, can increase, which in some women adds thinning at the hairline.

Several non-hormonal factors commonly make it worse and are worth ruling out, because they are treatable:

  • Low iron (one of the most common and most fixable causes)
  • Thyroid problems
  • Low vitamin D
  • Stress and poor sleep

It is distressing, but for many women it is partial and manageable rather than dramatic, and identifying a treatable cause often makes the biggest difference. The diffuse pattern is also a clue in itself: thinning spread across the top of the scalp points towards the hormonal and nutritional causes above, whereas sudden patchy loss is a different problem that warrants prompt assessment.

Timing offers a clue too. A sudden, heavier shed two to three months after a stressful event, illness or crash diet is usually telogen effluvium, a temporary push of hairs into the resting phase that recovers on its own. The slow, steady thinning of menopause is different, which is why a sudden change is worth flagging rather than assuming it is hormonal.

What to do: ask your GP to check for iron deficiency, thyroid problems and vitamin D, since these are common, treatable contributors. Support hair with enough protein, gentle hair care and stress management. HRT helps some women by restoring oestrogen, and topical minoxidil is an evidence-based option for female-pattern thinning. If hair loss is sudden, patchy or severe, see your doctor for a proper assessment, and you can map your wider symptoms with our free hormone quiz.

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Based on guidance from the NHS, NICE, Cleveland Clinic and peer-reviewed research.
By M. Videika, author of The Testosterone Blueprint · Reviewed June 2026
General information, not a substitute for personal medical advice — always consult your doctor or a qualified health professional before making health decisions.