Alopecia areata refers to loss of hair usually in patches. It generally affects hair on the scalp but can occur in other parts of the body as well. While alopecia areata usually causes patches of hair loss, there can also be a general over thinning of hair known as diffuse alopecia areata. Alopecia totalis refers to complete loss of scalp hair while the very rare Alopecia universalis is loss of hair from the whole body. It should be noted the loss of hair following a pregnancy or discontinuation of hormone therapies are not Alopecia areata.
Who can get affected by Alopecia areata?
Alopecia areata can affect both men and women - it generally affects people when young but can occur in adults as well.
What causes Alopecia areata?
Often people develop this condition after a stressful situation. It can also be caused due to genetic factors. It is considered to be an autoimmune disorder where the body's own immune system attacks hair follicles.
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