Bruising of the brain tissue along or just beneath its surface accompanied by symptoms lasting more than 24 hours describes a contusion.
A bruise is referred to medically as a contusion. Bruises can result from trauma to the skin, muscles, bones, and subcutaneous tissue. Internal organs including the lungs as well as the eyes and mouth can also bleed. Bruises are a sort of subcutaneous hemorrhage. Small blood vessels called capillaries can be damaged by a forceful blow, such as those caused by falling or hitting a heavy item. The injured area bleeds as a result of this. The region may enlarge and appear red or blue because the bleeding is occurring beneath the skin. The soft tissue and bones can bleed.
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