Alopecia areata (AA) is a common nonscarring alopecia involving the scalp/body characterized by hair loss without any clinical inflammatory signs. It affects individuals of all age groups and both sexes with a lifetime risk of 1.7%. 1 Patients usually present with wellcircumscribed smooth bald patches ranging from a single patch to complete loss of hair on the scalp (alopecia totalis) or over the entire body (alopecia universalis). 2
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