What is alopecia?

Alopecia is hair loss; may be partial or complete, permanent or temporary.
androgenetic a. Progressive, diffuse loss of scalp hair in men, thought to result from a genetic predisposition. May occur in women associated with elevated androgen levels resulting from ovarian or adrenal gland dysfunction or tumor. Also called alopecia hereditaria.
a. areata Complete loss of hair in patches, chiefly on the scalp.
drug-induced a. Reversible hair loss caused by administration of certain drugs.
scarring a. Alopecia marked by fibrosis, inflammation, and loss of hair follicles.
senile a. Loss of hair normally occurring in old age.
a. totalis Total loss of hair from all parts of the body.
a. universalis See alopecia totalis.

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