Alopecia areata is an autoimmune disorder characterized by hair loss in one or more well-circumscribed round patches, typically on the scalp. In this disorder, auto-reactive T-cells attack hair follicles in the growth phase and disrupt the normal hair cycle. Alopecia areata is associated with other autoimmune diseases, most frequently Hashimoto’s thyroiditis. There is limited evidence guiding treatment for this disorder; however, there is some success with intralesional steroid injections, topical corticosteroids, topical immunomodulators, and phototherapy. There is no cure for alopecia areata; however, those with limited disease may experience spontaneous hair regrowth.
KeywordsAlopecia areata Alopecia Hair loss Balding Bald Autoimmune Telogen effluvium Thyroiditis Hair cycle Exclamation point hairs Nail pitting Intralesional steroid Corticosteroid Immunomodulator Calcineurin inhibitor Phototherapy Pacrolimus
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