Bloody effusion will appear in the acute stage after a foot fall, which is due to the injury causing local blood vessel rupture and bleeding, resulting in hematoma formation and the production of bloody effusion. In this case, we should take brake rest, support symptomatic treatment, including anti-inflammatory and analgesic, blood circulation and blood stasis, if there is no complication, in about two weeks, the hematoma effusion gradually mechanized, dissipated and absorbed. If the late injury and local effusion are caused by inflammatory reaction and inflammatory effusion occurs, corresponding treatment should be carried out, including oral non-steroidal anti-inflammatory and analgesic drugs, such as fenbendazole and celecoxib, local topical drugs to invigorate blood circulation and resolve blood stasis, commonly used are Yunnan Baiyao aerosol, and local physical therapy, including hot compresses, baking electricity and spectrum irradiation, to promote the absorption of effusion and dissipate inflammation. Generally, after these treatments, local effusion is absorbed and dissipated in about 2-3 weeks. If the effusion persists for a long time, it is necessary to go to the hospital for systematic examination.