Tiny bumps on skin: possible causes

Bumps around hairs may fit Folliculitis, while tiny itchy spots after sweating can occur with Heat Rash. Rough, regularly spaced bumps on the upper arms or thighs are often described with Keratosis Pilaris. Firm pale bumps can be Milia. Lichen Planus may cause itchy, flat-topped or purplish bumps, although appearance varies. Note whether the bumps are itchy, sore, scaly, fluid-filled, or changing, and whether they are limited to one area or widespread. Skin Bumps covers the symptom when no pattern is obvious.

Wash gently, moisturise, and avoid scratching, friction, overheating, and newly introduced fragranced products. Do not squeeze or freeze an undiagnosed lesion. Photograph the area in good light and record when it started, what was applied, and any new medicine. A clinician may consider Antihistamine Treatment when itch is prominent, or Cryotherapy (Lesion Removal) for a diagnosed lesion that is suitable for that procedure. Treatment depends on the cause rather than bump size alone.

Get urgent help for breathing difficulty, facial or tongue swelling, faintness, widespread blistering, skin peeling, or severe illness. Arrange prompt assessment for fever, pus, rapidly spreading redness, severe pain, or a bump that bleeds or changes quickly. Make a routine appointment if the bumps persist, recur, disturb sleep, or do not respond to gentle care.

What features identify these bumps? Could a medicine, product, heat, or friction be contributing? Is any testing needed? Which changes should make me seek urgent help? What treatment is appropriate for this body site?