What condition involves tissue swelling and bleeding following an injury?

The condition that involves tissue swelling and bleeding following an injury is a contusion. A contusion, commonly referred to as a bruise, occurs when small blood vessels are damaged due to a direct blow or impact, leading to bleeding under the skin. This results in localized swelling, pain, and discoloration as the blood pools in the surrounding tissues.

In contrast, a sprain involves the stretching or tearing of ligaments, which connect bones at a joint, but does not necessarily include swelling due to bleeding like a contusion. Compartment syndrome, while also characterized by swelling, is a serious condition that occurs when pressure within a muscle compartment increases to dangerous levels, potentially leading to muscle and nerve damage, but is not specifically caused by bleeding from the tissues at the site of injury. A fracture is a break in the bone, which can also lead to swelling and may involve bleeding but focuses on the injury to bone rather than soft tissue.

Understanding the distinction between these conditions helps in recognizing the symptoms and determining the appropriate treatment for injuries in sports medicine.