Compression purpura usually does not require treatment. Compression purpura is a phenomenon caused by external factors that increase capillary pressure, resulting in capillary rupture and bleeding, and bleeding spots and bleeding spots on the skin surface. This condition is mostly seen in children with violent coughing, vomiting or crying, and in adults with constipation, strenuous exercise, and strenuous scratching. Usually when these external factors are removed, purpura will absorb and subside on its own in about a week and no special treatment is needed. But whenever there is subcutaneous bleeding and petechial hemorrhage, it is necessary to check the patient’s blood routine to see if the patient’s red blood cells, white blood cells and platelets are normal to rule out thrombocytopenic purpura or other blood disorders.