963adae9__fact_sheet___womenshealth_gov_ne_diseases_and_their_symptoms_Symptoms
[Disease] Alopecia areata (Al-uh-PEE-shuh AR-ee-AYT-uh)The immune system attacks hair follicles (the structures from which hair grows). It usually does not threaten health, but it can greatly affect the way a person looks. [Symptoms] 
Patchy hair loss on the scalp, face, or other areas of your body
Autoimmune diseases fact sheet | womenshealth.gov
Symptoms