Hair Loss: Causes, Treatment and Minoxidil

Hair thinning is common in both men and women, and many causes are treatable. This page brings together our hair loss guides and the over-the-counter treatment, minoxidil.

Common types of hair loss

  • Pattern hair loss (hereditary): gradual thinning at the crown or a widening parting. It’s the most common type.
  • Telogen effluvium: sudden shedding 2–3 months after stress, illness, childbirth or crash dieting. It usually recovers on its own.
  • Patchy hair loss (such as alopecia areata): round bald patches. See a doctor.

Our hair loss guides

Treatment

Minoxidil takes 2 to 4 months to show results and works only while you keep using it.

See a doctor if

Hair loss is sudden, patchy or in clumps, your scalp is red, scaly or painful, or you have other symptoms such as tiredness, weight changes or irregular periods. A blood test can check for iron deficiency and thyroid problems.

Information on this page is general and isn’t a substitute for advice from a doctor or pharmacist.

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