Alopecia totalis is the loss of all head hair. Its causes are unclear, but it is an autoimmune disorder, and can be the result of stress. Young Girl Fixing her Hair, by Sophie Gengembre Anderson Hair is a filamentous outgrowth of the skin found only in mammals. ... Autoimmune diseases arise from an overactive immune response of the body against substances and tissues normally present in the body. ... This picture shows an exaggerated expression of stress. ...
Alopecia areata ("baldness in spots") is a form of hair loss from areas of the body, usually from the scalp.
A possible condition called Diffuse alopecia areata may cause a person with mixed grey and dark hairs to lose all their dark hairs at once due to a psychological trauma, causing the patient's hair to appear to have turned white overnight.
Alopecia areata is thought to be an autoimmune disease in which the body mistakenly treats its hair follicles as foreign tissue and suppresses or stops hair growth.
Alopecia, commonly known as baldness, is a set of disorders which involves the state of lacking hair where it would normally grow, especially on the head.
Traction alopecia is most commonly found in people with ponytails or cornrows that pull on their hair with excessive force.
Alopecia areata is an autoimmune disorder also known as "spot baldness" that can result in hair loss ranging from just one location (Alopecia areata monolocularis) to every hair on the entire body (Alopecia areata universalis).
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