The appearance of bruises on the body indicates that there is local subcutaneous bleeding, first of all, the cause of the bruises on the body should be clarified. If there is an obvious history of trauma, it is caused by trauma and does not require special treatment, and the bleeding will be absorbed slowly after rest. If there is no obvious history of trauma, but there are bruises on the body, you need to go to the hematology department for routine blood tests and coagulation routine. If the platelet count is reduced in the routine blood test and the bruises are caused by thrombocytopenia, a bone marrow aspiration is required to determine the cause of the thrombocytopenia. One of the most common clinical disorders is immune thrombocytopenic purpura, which requires glucocorticoid therapy. If it is caused by coagulation dysfunction on the body ocythematous clots, it needs to be further examined which coagulation factor deficiency is causing it, and then given the corresponding supplementation of coagulation factors, such as factor VII deficiency, which can be treated with plasma supplementation, cold precipitation, etc.