How are abrasions caused by friction against rough surfaces?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Close-up of a person holding a child's hand with scabs on the fingers, gently cleaning the wounds with gauze. — wound Injuries that break skin can be painfully memorable.

An abrasion is a type of wound that occurs when the epidermis—the outermost layer of the skin—is damaged.

These injuries are caused by friction against a rough surface, which physically scrapes or rubs away the superficial layers of the skin. Because these layers are removed through this mechanical action, the injury typically manifests as a scrape. While often minor, abrasions can be painful and may require medical care if they are extensive, deep, or become infected.1