Keratosis pilaris
Keratosis pilaris is a common skin condition in which a protein in the skin called keratin forms hard plugs within hair follicles.
Causes
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).
Benign
Benign refers to a condition, tumor, or growth that is not cancerous. This means that it does not spread to other parts of the body. It does not in...
Atopic dermatitis
Atopic dermatitis is a long-term (chronic) skin disorder that involves scaly and itchy rashes. It is a type of eczema. Other forms of eczema include...
The condition is generally worse in winter and often clears in the summer.
Symptoms
Symptoms may 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
Exams and Tests
Your health care provider can usually diagnose this condition by looking at your skin. Tests are often 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 if you stop using the medicine.
Outlook (Prognosis)
Keratosis pilaris may fade slowly with age.
When to Contact a Medical Professional
Contact your provider if the bumps are bothersome and do not get better with lotions you buy without a prescription.
References
Bell MA, Grossberg AL. Keratosis pilaris and variants. In: Lebwohl MG, Heymann WR, Coulson IH, Murell DF, eds. Treatment of Skin Disease. 6th ed. Philadelphia, PA: Elsevier; 2022:chap 125.
Patterson JW. Diseases of cutaneous appendages. In: Patterson JW, ed. Weedon's Skin Pathology. 5th ed. Philadelphia, PA: Elsevier; 2021:chap 16.
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Keratosis pilaris on the cheek - illustration
Keratosis pilaris occurs most commonly during childhood and produces small, rough spots, called papules, that are typically the same color as the skin. They usually appear over the outer surface of the upper arms and thighs, but may also occur elsewhere on the body. Dry skin, especially during winter months, makes the condition worse. Keratosis pilaris tends to be inherited and may be associated with atopic dermatitis.
Keratosis pilaris on the cheek
illustration
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Keratosis pilaris rubra faceii - illustration
Keratosis pilaris rubra faceii is characterized by redness (erythema) and the presence of rough bumpiness (follicular spines) which may begin at birth or during childhood or adolescence.
Keratosis pilaris rubra faceii
illustration
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Keratosis pilaris rubra faceii - illustration
Keratosis pilaris rubra faceii is characterized by redness (erythema) and the presence of rough bumps (follicular spines) which may begin at birth, or during childhood or adolescence.
Keratosis pilaris rubra faceii
illustration
-
Keratosis pilaris on the cheek - illustration
Keratosis pilaris occurs most commonly during childhood and produces small, rough spots, called papules, that are typically the same color as the skin. They usually appear over the outer surface of the upper arms and thighs, but may also occur elsewhere on the body. Dry skin, especially during winter months, makes the condition worse. Keratosis pilaris tends to be inherited and may be associated with atopic dermatitis.
Keratosis pilaris on the cheek
illustration
-
Keratosis pilaris rubra faceii - illustration
Keratosis pilaris rubra faceii is characterized by redness (erythema) and the presence of rough bumpiness (follicular spines) which may begin at birth or during childhood or adolescence.
Keratosis pilaris rubra faceii
illustration
-
Keratosis pilaris rubra faceii - illustration
Keratosis pilaris rubra faceii is characterized by redness (erythema) and the presence of rough bumps (follicular spines) which may begin at birth, or during childhood or adolescence.
Keratosis pilaris rubra faceii
illustration
Review Date: 10/11/2023
Reviewed By: Elika Hoss, MD, Assistant Professor of Dermatology, Mayo Clinic, Scottsdale, AZ. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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