Alyssa Milano hair loss: what patients should know

Illness, fever, major physical stress, surgery, childbirth, rapid dietary change, or some medicines can shift many follicles into a resting phase. The resulting diffuse shedding is called telogen effluvium and may become noticeable after the triggering event. This is one possible explanation for post-illness shedding; it does not establish the cause of another person's hair loss. Pattern thinning, autoimmune alopecia areata, scalp infection, tight hairstyles, thyroid problems, and iron deficiency can look different or overlap.

Note whether loss is diffuse, patchy, centred on the hairline, or accompanied by broken hairs. Record recent illnesses, new medicines, restrictive diets, menstrual changes, pregnancy, and hair practices. Use gentle washing and detangling, avoid tight styles and harsh chemical processing, and eat a balanced diet with adequate protein. Do not start supplements or prescription hair-loss medicines solely because they helped someone else; excess nutrients can be harmful, and treatment depends on the diagnosis.

Arrange a clinician or dermatologist visit for sudden patches, persistent heavy shedding, visible scalp, eyebrow or eyelash loss, or hair loss that is distressing you. Seek prompt assessment when the scalp is painful, very red, swollen, crusted, draining, or rapidly worsening. A clinician may examine the scalp and hair shafts, review medicines and nutrition, and order targeted blood tests when the history suggests anaemia, thyroid disease, or another underlying issue.

Ask what pattern of hair loss the examination shows, whether a recent illness could fit the timing, and whether any medicine or hairstyle may be contributing. Also ask which tests are appropriate, what regrowth signs to watch for, and which treatments match the confirmed cause.