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Keratosis pilaris


Definition:

Keratosis pilaris is a common skin condition in which a protein in the skin called keratin forms hard plugs within hair follicles.

Causes, incidence, and risk factors:

Keratosis pilaris is harmless (benign). It seems to run in families.  It is more common in people who have very dry skin, or who have atopic dermatitis (eczema).

The condition is generally worse in winter and often clears in the summer.

Symptoms:

Symptoms include:

  • Small bumps that look like "goose bumps" on the back of the upper arms and thighs
  • Bumps feel like very rough sandpaper
  • Skin-colored bumps are the size of a grain of sand
  • Slight pinkness may be seen around some bumps
  • Bumps may appear on the face and be mistaken for acne
Signs and tests:

Your doctor or nurse can usually diagnose this condition by looking at your skin. Tests are usually not needed.

Treatment:

Treatment may include:

  • Moisturizing lotions to soothe the skin and help it look better
  • Skin creams that contain urea, lactic acid, glycolic acid, salicylic acid, tretinoin, or vitamin D
  • Steroid creams to reduce redness

Improvement often takes months and the bumps are likely to come back.

Expectations (prognosis):

Keratosis pilaris may fade slowly with age.

Calling your health care provider:

Call your doctor or nurse if the bumps are bothersome and do not get better with lotions you buy without a prescription.


Review Date: 11/22/2011
Reviewed By: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2002 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

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