The time to eliminate the bruising is mainly related to the severity of the disease, and there are large individual differences. If the bruising is small and the symptoms are mild, it usually recovers on its own in about 2-3 weeks. If the bruise is large and the symptoms are severe, it usually takes more than 1 month to recover gradually. Patients can apply local hot compresses after injury, and can also apply topical ointments that activate blood circulation and remove blood stasis, such as Panax ginseng powder and bruises to promote the absorption of bruises. In daily life, attention should be paid to the protection of the skin to avoid secondary injury, while paying attention to a light diet, more rest, more vitamins, trace elements and calcium supplements, and keeping clean to avoid inducing local infection, etc. In addition, if the bruise purple is not eliminated for a long time, other etiologies should be considered, such as vitamin C deficiency, allergic purpura, etc. Patients are advised to visit the general surgery department of regular hospitals for examination in time to clarify the diagnosis and carry out symptomatic treatment.