Alopecia areata, scalp or trunk without leaving scar tissue that cause hair loss associated with immune inflammatory disease. This disease subsets of hair in no hairs at all do not have alopecia totalis and all body hair loss is alopecia universal is. Alopecia areata, is usually a particular field, suddenly emerged as the net a limited loss of hair is a type. Can occur at any age. The most commonly observed between the ages of 10-40. More recent studies in children between the ages of 0-5 have been reported to occur. Both sexes are affected equally.
Hair, tissue degradation occurring usually oval or round in shape, at one point or may be multiple. The regions most frequently involved are the scalp. Hair, eyebrows, eyelashes, beard area, underarm and pubic hair region or the whole body be cast. Ofiyazis (ringworm) are also known as a spill is different. This type of alopecia areata shed towards the back of the head, hair in the form of a line extending along the borders out. In the area of hair loss are skin appeared normal. As a rule, does not indicate a new outpouring of patients before, but sometimes numbness or sensitivity can be specified. Period in the development of the affected hair mature hair and can be seen on the stage is a rapid transition occurs alopecic area. "Exclamation mark hair known as" short and tapered hair, can be seen in or around alopecic area. They are short, broken hair, hair on the skin surface has been right and center-to-end thick.