What should you know about thyroid hair loss?

Thyroid hormone changes can disturb the hair-growth cycle, so shedding may become noticeable across the scalp and hair may feel dry or coarse. The pattern is not diagnostic by itself. Telogen effluvium can follow illness or physiological stress, while androgenetic alopecia gradually reduces density in a patterned area. Alopecia areata causes distinct smooth patches; scalp ringworm may bring scale or broken hairs; traction alopecia follows repeated pulling. A scalp examination helps distinguish these possibilities.

Write down when shedding began and whether it followed a thyroid diagnosis, dose change, illness, dietary restriction, or stressful event. Look for patchiness, itching, scale, tenderness, or hairline changes. Use gentle washing, limit tight hairstyles and harsh chemical processing, and avoid starting prescription hair medicine without a review. Your clinician may check thyroid control and consider other contributors before discussing options such as minoxidil or finasteride, where medically appropriate.

Arrange a medical appointment for persistent shedding, a widening part, receding areas, eyebrow loss, or scalp symptoms. Seek earlier assessment for sudden smooth bald patches, marked redness, pus, pain, or broken hairs with scale, since these features can point to conditions needing targeted treatment. Rapid hair change with severe fatigue, palpitations, or other systemic symptoms also warrants review.

Does my distribution fit thyroid-related shedding or another hair-loss condition? Is my thyroid treatment adequately controlled? Do I need scalp examination or blood tests? Which treatments are safe with my medicines and health history, and when should improvement be judged?