What should you know about black keratosis pilaris?

Keratin plugs the openings of hair follicles, creating a sandpaper-like texture. The condition is harmless, but dryness, rubbing, picking, and inflammation can make both the bumps and surrounding pigment more noticeable.

The bumps are usually small, uniform, and centred on follicles. They commonly cluster on upper arms, thighs, buttocks, or cheeks and may feel rougher when skin is dry. They are not typically filled with pus.

Ingrown hairs tend to follow hair removal and may show a trapped or curved hair. Folliculitis is more likely to present with tender, inflamed, or pus-filled bumps. A clinician can distinguish these patterns when the appearance is mixed.

Keep showers lukewarm, use a mild cleanser, and apply a thick fragrance-free moisturiser while skin is slightly damp. A product containing a keratolytic ingredient may soften plugs, but introduce it gradually and stop if burning or persistent redness develops.

Skip rough gloves, aggressive scrubs, and picking; mechanical irritation can deepen pigment. A dermatologist may recommend a topical retinoid or a supervised procedure for persistent texture, taking sensitivity and the risk of colour change into account.

Arrange an assessment when bumps are painful, draining pus, intensely itchy, spreading quickly, or leaving scars, because uncomplicated keratosis pilaris does not usually behave that way. Sudden swelling, fever, or rapidly spreading tender redness needs prompt care.

A routine dermatology visit can help when the diagnosis is unclear or home care causes irritation. Bring the products you use and explain whether shaving, waxing, heat, or dry weather changes the pattern.

Ask which moisturising or keratolytic ingredient suits the affected body site, how frequently to apply it, and how to recognise irritation early. If pigment is the main concern, discuss controlling inflammation before considering a peel or other procedure.