A contusion is typically just another name for a bruise, but a muscle contusion is a little different. Muscle contusions are the second most common sports injury. They occur from a direct blow to a part of the body that damages the underlying tissue and muscle fibers without breaking the skin.
Severe muscle contusions can form large hematomas over the affected area and cause pain and swelling, limiting weight bearing or range of motion on the joint near the injury.

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