Alopecia Areata Is a non-scarring autoimmune condition that causes sudden, smooth patches of hair loss on the scalp and sometimes brows, lashes, or beard. It affects men, women, and children and often follows stress, illness, or changes such as thyroid or low iron, although many have no clear trigger, and https://shunahammockstrichology.com/kb/hair-loss-conditions/alopecia-areata/