Frictional Melanosis

Friction melanosis is a darkening of the skin that appears in areas subjected to repeated rubbing, for example with rough sponges, tight clothing, or the use of certain implements on the skin. The affected areas usually show a tone darker than the neighboring skin.

Usual features: The spots tend to localize over bony prominences, such as the elbows, collarbones, or ankles, and usually do not cause pain.

Common causes: The central factor is continuous mechanical friction, which stimulates pigment production in the skin.

Which specialist treats it? The dermatologist, and in children the pediatric dermatologist, can identify the origin and distinguish it from other causes of hyperpigmentation; the general practitioner also guides the first evaluation. If you observe dark spots that persist, consulting a professional makes it possible to clarify their cause.