What condition refers to a skin sore or abrasion resulting from scratching or scraping?

The condition that refers to a skin sore or abrasion resulting from scratching or scraping is excoriation. This term specifically describes the damage that occurs to the skin's surface due to excessive rubbing or scratching. When the skin is scratched, it can lead to an open wound or sore, which is characteristic of excoriation. This condition often arises from the body’s response to various irritants, allergic reactions, or skin conditions that lead individuals to scratch areas of the skin.

Other terms such as ulcer, crust, and fissure have distinct meanings. An ulcer is a deeper, often chronic sore that involves the loss of deeper layers of skin or mucous membrane, and it typically has a more complex etiology. Crust refers to a dry, rough surface that forms when fluids or exudates dry out, often appearing on the skin as a scab. Fissure describes a crack in the skin that can occur in various areas, such as the corners of the mouth or between the toes, but it’s not limited to damage caused by scratching. Understanding these definitions helps clarify why excoriation is the correct response for a sore or abrasion specifically resulting from scratching or scraping.