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Definition of Keratosis Pilaris
The bumps may be the same color as the skin or slightly reddened and create a texture like rough sandpaper on the skin’s surface.
Occasionally the bumps itch. The condition most often affects the lower arms and inner thighs, though can occur anywhere on the body, and is most common among adolescents. Researchers have implicated number of gene mutations for keratosis pilaris.
The eruption and pattern of bumps present a fairly conclusive diagnostic picture. A biopsy can confirm any questionable presentations. Treatment typically consists of measures to increase exfoliation, which clears accumulated cells from the hair follicles. Topical products containing alphahydroxy acids such as lactic acid are often helpful. The dermatologist may prescribe a topical retinoid medication to treat resistant symptoms. Keratosis pilaris becomes increasingly uncommon with age and generally resolves by the early 20s.