Autoimmune hair loss is a condition in which the immune system attacks the hair follicles, leading to hair shedding on the scalp, face, or body; it is most commonly seen in alopecia areata. The hair follicles are not destroyed in this condition, which distinguishes it from scarring forms and allows for potential regrowth.
This condition affects around 2% of people globally and often appears as smooth, round bald patches, though in more severe cases it can progress to complete scalp or body hair loss.
