It is a type of alopecia (hair loss) in plaque, non-scarring, of autoimmune origin.

It is most common on the scalp, but can affect any part of the body. Rarely, it can cause loss of all hair and body hair (alopecia areata universalis). When all the hair is lost, it is called alopecia areata totalis.

The diagnosis is made through dermoscopy of the affected area, sometimes requiring a skin biopsy.

Treatment is carried out by a dermatologist according to the degree of disease activity and the extent of the affected area. In general, patients have a good response to treatment with hair removal of the affected area.

Relapses of the disease can occur.

Consult your dermatologist.