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What is keratosis pilaris?
Keratosis pilaris is a common, harmless skin condition that causes small bumps to appear on the skin. It often appears on the upper arms and thighs.
What are the symptoms of keratosis pilaris?
Keratosis pilaris may make your skin look like you have “goose bumps.” The bumps are often the color of your skin. They may also look white, red, pinkish-purple on fair skin, or brownish-black on dark skin. They can feel rough and dry like sandpaper. They may itch, but they don’t hurt. If you have keratosis pilaris on your face, it may look like acne, and you may look flushed. The skin on your face may be dry and chapped.
The area of your skin that is affected by keratosis pilaris may become darker (hyperpigmentation) or lighter (hypopigmentation) than the surrounding skin. This can happen if you scratch or pick at the bumps. It usually goes away with treatment.
Some people with keratosis pilaris only get a few flesh-colored bumps. Others have noticeable bumps that can look like a rash. The bumps can appear anywhere on your skin. They are most common on the upper arms and the front of the thighs. Some people have so many bumps that they extend onto the forearms or lower legs.
What causes keratosis pilaris?
Keratosis pilaris occurs when dead skin cells clog the hair follicles (also called pores) in your skin. It is not caused by a fungus, bacteria, or a virus. It is not contagious. It occurs more often during the winter months when the air is dry. It tends to improve in warmer months when humidity is higher.
Keratosis pilaris can occur at any age and affect anyone. It usually appears before age 2 or during the teenage years. It can worsen during pregnancy and after childbirth. It generally affects women more often than men. Keratosis pilaris may disappear or improve with age.
You are more likely to develop keratosis pilaris if you have:
- A family history of it.
- Dry skin.
- Eczema (also called atopic dermatitis).
- Excess body weight.
- Hay fever.
How is keratosis pilaris diagnosed?
Your doctor will be able to tell if you have keratosis pilaris by looking at your skin and talking to you about your symptoms. He or she will examine your skin and rule out other medical conditions. Tests are usually not needed.
There is no cure for keratosis pilaris. Certain medicines and home remedies can help. Your doctor may suggest:
- Moisturizing lotions to soothe the skin.
- Exfoliating the skin. This is when you use a loofah or rough washcloth to gently remove dead skin cells from the surface of your skin.
- Skin creams that contain certain ingredients to help soften the skin and loosen dead skin cells. These ingredients could include urea, lactic acid, glycolic acid (alpha hydroxy), salicylic acid, or tretinoin.
- Steroid creams to reduce redness and itching.
You can’t cure keratosis pilaris, but you can minimize your symptoms by following your doctor’s suggestions. It may be weeks or months before you see results, so be patient. Keep your treatment plan going, even if the bumps go away. Keratosis pilaris often returns when treatment is stopped.
Tips to help improve the appearance of your skin:
- Wash your skin gently. Avoid scrubbing the affected area of your skin. Use warm (not hot) water and a mild soap (some brand names: Cetaphil, Lubriderm, Purpose). Avoid deodorant or soaps with a strong fragrance. The perfumes used in these products can dry out the skin.
- Pat dry (don’t rub) your skin after showering or bathing.
- Use a moisturizer after every shower or bath. Apply it within 5 minutes of getting out, while your skin is still damp.
- Apply moisturizer 2 to 3 times a day. Moisturizers that contain urea (some brand names: Eucerin, Lubriderm) are especially helpful because they soften dry, rough skin.
- Use a humidifier to increase the humidity of your environment.
Questions to Ask Your Doctor
- Do I have keratosis pilaris?
- How did I get keratosis pilaris?
- What is the best treatment for me?
- What lotion or moisturizer would you recommend I use?
- Will my keratosis pilaris get better during the summer?
- Will my keratosis pilaris go away as I get older?
- If my symptoms get worse, when should I call my doctor?
- Are there any lifestyle changes I should make?
- Do I need any prescription medicines?
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This information provides a general overview and may not apply to everyone. Talk to your family doctor to find out if this information applies to you and to get more information on this subject.