What is a bruise with bleeding into the muscle tissue called?

A bruise with bleeding into the muscle tissue is referred to as a contusion. This term specifically describes the injury that occurs when small blood vessels rupture due to trauma, leading to localized bleeding within the muscles. As blood collects in the surrounding tissue, it causes swelling and discoloration characteristic of a bruise.

In the realm of medical terminology, a contusion is distinct from an abrasion, which involves the scraping away of the skin's surface without deeper tissue involvement. Similarly, a strain refers to the stretching or tearing of muscles or tendons, while a dislocation pertains to the displacement of bones at a joint. Understanding these distinctions is essential in the context of sports medicine and injury management, as it helps in diagnosing and treating different types of injuries effectively.