Rough bumps on the back of the arms, thighs and buttocks are keratosis pilaris (KP), popularly "chicken" or "goose" skin. They are often mistaken for acne and people try to "squeeze" them — which is the worst thing you can do. Let us work out what really smooths the texture and what irritates.
KP is a build-up of keratin clogging the openings of the follicles: harmless, not contagious, often fades with age. It cannot be "cured" completely, but the texture is smoothed by hydration + gentle chemical exfoliation (lactic, glycolic, salicylic acids, urea). Irritating and worsening: a hot shower, harsh scrubs, squeezing. This is maintenance care — it works as long as you do it regularly.
01What it is
With KP the skin produces an excess of keratin, which clogs the openings of the hair follicles — forming small firm bumps, sometimes with redness around them. Typical places: the back of the arms, thighs, buttocks, more rarely the cheeks. The condition is harmless and very common, often hereditary, flaring up in winter and on dry skin. In many it gradually fades by the age of 30.
02What smooths the texture
Two pillars: hydration (KP is always worse on dry skin) and gentle chemical exfoliation. According to surveys of dermatologists, the first line is lactic acid (lactate), then salicylic; glycolic acid and urea also help. The logic: acids dissolve the keratin plugs, and hydration softens the bumps. Apply the keratolytic, then a cream is essential (acids dry). The result is weeks of regularity, not a one-off effect.
03How to care
The routine: a warm short shower (hot water worsens KP) → gentle cleansing → a keratolytic with acid on the problem areas several times a week → a moisturiser on top. You can gently exfoliate with a loofah, but without harsh rubbing. This is a maintenance regime: stop it and the bumps return. If the redness and inflammation are marked, a dermatologist can choose prescription products or laser.
- Squeezing the bumps. This is not acne — injury leads to inflammation and marks.
- A harsh scrub "until it's red". Mechanical friction irritates and worsens the appearance.
- Acid without a cream afterwards. Over-drying worsens KP.
- A hot shower. Dries the skin and provokes a flare-up.
- Expecting a full cure. KP is not removed forever — only maintained.
04What to try
Exfoliation (keratolytics)
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05Common questions
Will "chicken skin" go away on its own?
Often yes — in many, KP becomes less noticeable by the age of 30, and in summer it is usually easier than in winter. But this happens gradually, over years.
Can I remove the bumps with a scrub?
A mechanical scrub gives temporary smoothness but easily irritates. Gentle chemical exfoliation (acids) plus hydration works more durably.
Is it contagious?
No. KP is not contagious or dangerous; it is a cosmetic feature linked to keratin production.
Drawing on dermatological sources:
This material is educational and does not replace a consultation with a dermatologist. Marked redness and inflammation is worth showing to a doctor.