Alopecia areata is a fairly common autoimmune disorder affecting over five million Americans. It affects males and females equally and is present in all races. People who are genetically predisposed to alopecia areata are usually unaware of it until the first bald patch appears. It is believed that something triggers the alopecia areata in those who are predisposed to the condition. Possible triggers include viruses, infection, high fever, trauma, extreme prolonged stress, allergies, etc.

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