Keratosis pilaris on the bum: what to know

Keratin plugs can develop around follicles on the buttocks, leaving a sandpaper-like texture or tiny red, brown, or skin-coloured bumps. Sweat, close clothing, prolonged sitting, and friction may make the area feel rougher. Pimples with pus, deep tender lumps, or spots centred on hairs may point to folliculitis or [Ingrown Hairs](/symptoms/ingrown-hairs/) instead. The condition itself is not a sign of poor hygiene; read more about [Keratosis Pilaris](/conditions/keratosis-pilaris/).

Use a mild cleanser, pat dry, and apply a fragrance-free moisturiser while the skin is still slightly damp. Choose breathable clothing and change out of sweaty clothes. Do not scrub hard or pick at individual bumps. A dermatologist may recommend an exfoliating moisturiser or [Topical Retinoids](/treatments/medical-dermatology/topical-retinoids/), depending on sensitivity and pregnancy status. [Emollient Therapy](/treatments/medical-dermatology/emollient-therapy/) can be useful for dryness. [Chemical Peel](/treatments/aesthetic-procedures/chemical-peel/) treatment should only be considered after an assessment of the area.

Book an appointment if bumps are deep, hot, rapidly spreading, repeatedly infected, or interfering with sitting or sleep. Prompt care is appropriate for fever, spreading redness, severe pain, or significant drainage. A clinician can distinguish keratosis pilaris from acne-like follicle inflammation and select treatment safely.

Do these buttock bumps match keratosis pilaris or folliculitis? Would an exfoliating moisturiser suit my skin? Could clothing, exercise, or hair removal be aggravating them?