Which term is used for skin changes resulting from excessive pressure or friction?

The term used for skin changes resulting from excessive pressure or friction is "callus." A callus forms as a protective response of the skin to ongoing irritation or mechanical stress, such as from repeated rubbing or pressure. The skin thickens and toughens in these areas to shield underlying tissues. This is particularly common on parts of the body that experience consistent friction, like the hands or feet.

Understanding a callus is crucial in esthetics, as it reflects the skin's adaptation mechanisms and can influence treatment approaches for clients with various skin conditions.

In contrast, a patch refers to a flat area of discoloration or change in texture on the skin, vesicles are small fluid-filled blisters often associated with conditions like herpes or contact dermatitis, and a scar is the result of healing after an injury that involves the dermis, typically showcasing a change in skin texture. Each of these terms describes different skin alterations that do not directly relate to the response to pressure or friction.