Alopecia > Diagnosis

First symptoms are small, soft, bald patches which can take just about any shape but are most usually round. Initial presentation most commonly occurs in the late teenage years but can happen with people of all ages. It most often affects the scalp but may occur on any hair-bearing part of the body. There may be different skin areas with hair loss and regrowth in the same body at the same time. It may go into remission for a time or permanently. The longer the hair loss persists, the smaller the chance that it will grow back. Fingernails may be affected, especially in severe cases where various nail changes may appear, the most common of which would be pitting of the fingernails.

In the diagnosis of alopecia areata, exclusion of other treatable diseases that cause hair loss such as trichotillomania and tinea capitis is important. In trichotillomania, there may be patches of broken hair and there will not be the skin changes associated with alopecia areata.

Table of Contents:
Types
Causes
Treatment
Prognosis