Alopecia areata

Alopecia totalis; Alopecia universalis; Ophiasis; Hair loss - patchy

Alopecia areata is a condition that causes round patches of hair loss. It can lead to total hair loss.

Alopecia areata with pustules

Pus-filled lesions (pustules) are unusual in alopecia areata, but can occur, as in this picture. The pustules are infected where medication was injected into the area.

Alopecia totalis - back view of the head

Hair loss is referred to as alopecia. Patchy hair loss on the scalp is called alopecia areata. Complete scalp hair loss is alopecia totalis. Loss of all body hair is called alopecia universalis.

Alopecia totalis - front view of the head

Hair loss is referred to as alopecia. Patchy hair loss on the scalp is called alopecia areata. Complete scalp hair loss is alopecia totalis. Hair loss from the entire body, including the eyebrows, eyelashes, and body hair, is alopecia universalis.

Alopecia, under treatment

This picture shows alopecia areata, under treatment. The hair loss is being treated with anthralin, which causes the brownish hyperpigmentation and can induce hair regrowth. It is very unlikely regrowth will occur when hair is lost along the scalp margin (ophiasis).

Causes

Symptoms

Exams and Tests

Treatment

Outlook (Prognosis)

When to Contact a Medical Professional