Acne mechanica is an acne-like skin eruption associated with mechanical forces such as pressure and friction.


People at risk:

(1) certain athletes

(2) people using crutches (in the axillae)

(3) amputees with a limb prosthesis



(1) presence of a papulopustular eruption

(2) distribution in a region exposed to some combination of friction, pressure, occlusion and heat

(3) resolution of skin eruption after reduction or elimination of precipitating factors


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