The medical term for a bruise is a contusion. Vary rarely, a large bruise can cause bleeding that is difficult to stop. A small contusion on a persons arm or knee, however, is unlikely to be serious.

Sherri Gordon, CLC is a certified professional life coach, author, and journalist covering health and wellness, social issues, parenting, and mental health. She also has a certificate of completion ...

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Contusions are a type of hematoma — any collection of blood outside a blood vessel. When you get a contusion, capillaries or blood vessels are injured, and blood leaks into the surrounding area. If ...

Contusions, or bruises, happen when the body is hit hard enough to damage the skin and underlying tissue, like muscle and blood vessels. Contusions typically don’t break the skin. Thigh contusions, ...