Skin bruising is caused by rupture of blood vessels due to certain reasons. Trauma and hematologic disorders may be considered and need to be treated accordingly depending on the specific cause of the disease. Treatment includes cold compresses, hot compresses and medication. 1. Trauma: If the bruise is caused by trauma, ice packs can be used in the early stage to reduce blood flow to alleviate the bruise, and hot compresses can be used after 24 hours to eliminate the bruise. Yunnan Baiyao can be used externally as prescribed by the doctor. 2. Hematologic diseases: If the disease is considered to be a hematologic disease, it should be solved according to the specific etiology. If you consider immune thrombocytopenic purpura, blood routine can show thrombocytopenia, can be glucocorticoid treatment under the guidance of the doctor. If the bruising is considered to be caused by hemophilia, plasma products can be administered under the supervision of a doctor. If there are bruises on the body, it is recommended to consult a doctor to clarify the cause of the disease and actively cooperate with the treatment.