Hair & Scalp Sciences第 67 / 100 题

The technical term for gray hair, caused by loss of natural pigment, is:

a.Canities
b.Hypertrichosis
c.Monilethrix
d.Trichoptilosis

解析

Canities is the medical term for the loss of natural pigment resulting in gray or white hair. It is usually related to age or heredity and is not a contraindication for service.

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