Heavy closed bruises have the following implications: 1, the injury-causing factors are bruises, such as falls, bruises and sprains, the above injuries can lead to more serious consequences, if the violence is light can also lead to lighter consequences. 2, heavy closed bruises indicate that the degree of injury is relatively serious, serious injuries can lead to significant contusions of local soft tissue, and can even lead to local tissue necrosis. In addition, it can also lead to local fractures, bone contusions, and ligament damage. Even rupture. 3, the heavier closed bruise injury indicates that there is no trauma, producing only subcutaneous tissue, skin, bone, ligament and other injuries, but there is no open wound.