Small Itchy Bumps on Arms and Legs

Rough, evenly spaced bumps around hair follicles, especially on the upper arms or thighs, fit keratosis pilaris, sometimes called chicken skin. Itching can increase when skin is dry. Bumps centred on hairs may instead reflect folliculitis, particularly after shaving, sweating, friction, or tight clothing. A clinician will also consider a new product, medicine, bite, or wider rash by asking when the spots began and whether anyone else is itchy.

Use a gentle, fragrance-free cleanser and apply a plain moisturiser while the skin is still slightly damp. Keep showers warm rather than hot, avoid scrubbing or picking, and pause shaving over irritated areas. Loose clothing can reduce rubbing and sweat. If the bumps persist, recur, contain pus, or leave marks, arrange a dermatology assessment; treatment depends on whether the follicles or the skin surface are involved.

Seek prompt medical care if redness spreads quickly, the area becomes hot or very painful, pus develops, or you feel feverish. Get urgent help for facial swelling, trouble breathing, faintness, or a rapidly widespread rash. Otherwise, book an appointment when itching disrupts sleep, the rash follows a new medicine, or home care has not helped.

Ask whether the bumps look follicular or more consistent with keratosis pilaris, whether a product or shaving habit may be contributing, and which moisturiser or treatment is suitable for your skin.