The following treatments are required for a bruised knee, i.e. cold compresses, topical medications, oral medications, etc. After the knee fall, if the local bruises appear, suggesting the occurrence of bruising, cold compresses can be applied immediately, which can lower the local temperature, which can promote vasoconstriction, which can reduce exudation, thus eliminating clinical symptoms. In addition, topical medication can be used, mainly topical Chinese medicine with the effect of activating blood and removing blood stasis, which can make the bruising subside, or oral medication, which can be taken orally with the effect of reducing swelling and removing blood stasis, which has good effect. Patients are advised to visit the hospital in time. The doctor will examine the patient to determine the severity of the condition and decide how to deal with it. The above methods can be used alone or in combination.