Alopecia Areata is an autoimmune disorder causing hair loss in round patches on the scalp and other areas. The immune system attacks hair follicles, leading to hair loss.

FAQs:

• Is alopecia areata permanent?
  Hair loss can be temporary, and hair may regrow.

• What causes it?
  It's an autoimmune condition; exact causes are unknown.

• Are there treatments?
  Yes, including corticosteroids and other immunosuppressive therapies.