A wound caused by a blow where the skin is bruised as well as torn and bleeding.
A bruise in which the skin is not broken. It may be caused by a blunt instrument. Injury of the tissues under the skin, leaving the skin unbroken, traumatizes the soft tissue. Ruptured blood vessels underneath the skin cause discoloration. If extravasated blood becomes encapsulated, it is termed hematoma; if it is diffuse, ecchymosis.
An injury caused by a blunt object, typically without breaking the skin.