Other autoimmune diseases such as lupus can also cause hair loss. Again it’s a case of mistaken identity: overzealous immune cells attack the hair. Unfortunately, hair loss of this type is “scarring,” meaning the hair will not grow back, says Dr. Hammonds.
What to do: If the hair loss is mild, you might want to try a new hairstyle to camouflage the damage. Short hair, for instance, is stronger than long hair and may hide bald patches better.