Keratosis Pilaris
Definition
Keratosis pilaris is a common skin condition that looks like small goose bumps, which are actually dead skin cells that build up around the hair follicle.
Description
Keratosis pilaris is a disorder that occurs around the hair follicles of the upper arms, thighs, and sometimes the buttocks. It presents as small, benign bumps or papules that are actually waxy build-ups of keratin. Normally skin sloughs off. However, around the hair follicle where the papules form, the keratinized skin cells slough off at a slower rate, clogging the follicles.
This is generally thought to be a genetic disorder, although the symptoms of keratosis pilaris are often seen with ichthyosis and allergic dermatitis. It can also be observed in people of all ages who have either inherited it, have a vitamin A deficiency or have dry skin. Keratosis pilaris is a self-limiting disorder that disappears as the person ages. It can become more severe when conditions are dry such as during the winter months or in dry climates.
Causes and symptoms
The specific causes of this disorder are unknown. Since this disorder runs in families, it is thought to be hereditary. Keratosis pilaris is not a serious disorder and is not contagious.
The symptoms of keratosis pilaris are based on the development of small white papules the size of a grain of sand on the upper arms, thighs, and occasionally the buttocks and face. The papules occur around a hair follicle and are firm and white. They feel a little like coarse sandpaper, but they are not painful and there usually is no itching associated with them. They are easily removed and the material inside the papule usually contains a small, coiled hair.
Diagnosis
A dermatologist or a general practicioner can easily diagnose this disorder. A physical examination is all that is necessary to diagnose keratosis pilaris. Special tests are not needed.
