If the backs of your upper arms feel like sandpaper and look covered in tiny dots, you’re far from alone. Keratosis pilaris, often called “chicken skin”, is one of the most common skin conditions dermatologists see, in children, teenagers and adults alike. It’s harmless and doesn’t spread, but many people find it embarrassing in sleeveless clothes, and years of scrubbing rarely help.
This guide explains what it is, what actually smooths it, and when it’s worth seeing a dermatologist.
What keratosis pilaris looks like
- Small, rough bumps, like goosebumps that don’t go away, around the openings of hair follicles.
- Usually on the backs of the upper arms, the front of the thighs and the buttocks; in children, often on the cheeks too.
- The bumps may be skin-coloured, red, or brownish around each follicle. On brown skin, a darker ring around the bumps is common.
- The skin around them often feels dry. Itching is usually mild or absent.
- It tends to look worse in dry winter weather and better in humid months.
Why it happens
Keratin is the tough protein that makes up the outer layer of the skin. In keratosis pilaris, too much keratin builds up at the opening of each hair follicle and forms a small, hard plug. The hair underneath may curl up under the plug, and the skin around it can become slightly inflamed and red.
Keratosis pilaris:
- runs in families;
- is more common in people with dry skin, eczema or allergies;
- often starts in childhood and is most noticeable in the teenage years;
- may become more obvious with hormonal changes, such as puberty or pregnancy;
- is not caused by dirt, poor hygiene, diet or an infection.
What helps at home
Keratosis pilaris can’t be cured, but it can usually be smoothed out and kept under control:
- Wash gently. Use lukewarm water and a mild, soap-free or moisturising cleanser. Long, hot showers and harsh soaps dry the skin and make bumps worse.
- Moisturise while the skin is damp. Within a few minutes of a bath, apply a moisturiser, and again later in the day; at least twice a day in winter.
- Use a cream with urea or lactic acid. These ingredients soften the keratin plugs and exfoliate evenly. Urea creams of about 10–20% and lactic acid creams are widely available; start once a day and build up. They can sting on broken or freshly shaved skin, so leave a gap after shaving.
- Go gently with exfoliating. A soft washcloth or loofah once or twice a week is enough. Hard scrubs and exfoliating gloves irritate, and on brown skin irritation can leave dark marks.
- Don’t pick or squeeze the bumps. It causes redness, marks and sometimes small scars.
- Give it time. Most people see smoother skin within four to six weeks of daily use. Then keep going with a lighter routine; the bumps return if you stop completely.
Some of our Orna Skincare moisturisers suit dry skin, but any fragrance-free moisturiser plus a urea or lactic acid cream will do the job. More on keeping the skin barrier healthy in dry months: winter skincare for dry skin in Gujarat.
What doesn’t help
- Scrubbing harder. It removes the top of the bump for a day and inflames the rest.
- Acne products alone. Benzoyl peroxide and acne gels treat a different problem; some dry the skin further.
- Steroid creams bought without a prescription. They don’t treat keratosis pilaris and can thin the skin with regular use. See our post on steroid creams on the face.
- Bleaching or “whitening” creams for the darker rings around the bumps, which irritate and rarely help.
Is it keratosis pilaris or something else?
A few other conditions can look similar:
- Acne on the chest, back or arms has blackheads and pimples of different sizes. Our back and chest acne guide explains the differences.
- Fungal acne shows as itchy, same-sized bumps on the upper back and chest in hot, humid weather.
- Folliculitis gives itchy or tender pus spots around hairs, often after shaving, waxing or swimming.
- Eczema is itchier, with dry, rough patches rather than separate bumps.
When to see a dermatologist
See a dermatologist if:
- the bumps are very red, itchy or spreading, or you aren’t sure it’s keratosis pilaris;
- there’s no improvement after six to eight weeks of a urea or lactic acid cream;
- dark marks around the bumps bother you;
- the bumps are on the face and leave redness or small pitted marks;
- a child has widespread bumps with very dry or itchy skin, which can come with eczema.
How a dermatologist treats it
At the consultation, the dermatologist confirms the diagnosis by looking at the skin, often with a dermoscope, and checks for eczema or other conditions. Treatment may include:
- Stronger prescription creams: higher-strength urea, salicylic acid, or a retinoid cream such as adapalene or tretinoin, used as advised to avoid irritation.
- A short course of a mild steroid cream when the bumps are very red and inflamed, under supervision.
- Gentle chemical peels in some cases, to smooth texture. See chemical peels.
- Lasers for stubborn cases: some reduce redness, and in some people laser hair removal on the area reduces the bumps.
- Treatment for dark marks once the bumps are under control.
Keratosis pilaris is one of many everyday skin conditions we see in skin specialist consultations in Rajkot.
The short version
Keratosis pilaris is a harmless build-up of keratin in the hair follicles that leaves rough, dotted skin, often on the arms and thighs. It runs in families, flares in dry weather and can’t be scrubbed away. Wash gently, moisturise twice a day with a urea or lactic acid cream, and give it four to six weeks; then keep up a lighter routine. If it’s red, itchy, stubborn or leaving marks, see a dermatologist.
