What is Alopecia Areata (AA)?
What is Alopecia Areata (AA)? AA is an autoimmune form of alopecia (hair loss) in which coin-sized patches of hair loss appear on the scalp, followed by small patches on beards and pubic hair. AA can also affect the eyebrows, eyelashes, and even body hair. Research on AA shows that at least 20% of patients […]