The cause of bruising is mainly due to trauma, resulting in the rupture of local microscopic blood vessels, blood extravasation, overflowing blood vessels, which in turn causes local tissue swelling. In order to eliminate bruising quickly, there are mainly the following methods: First, within 24 hours after the injury, you can use cold compresses, i.e., cold towels or ice, etc., in order to make the ruptured microscopic blood vessels contract, thus reducing the extravasation of blood and reducing local tissue bruising and swelling. Secondly, after 24 hours of injury, change to hot compresses, using hot towels or hot salt bags, to promote the dissipation of bruising and reduce local tissue swelling. Third, the need to cooperate with the application of symptomatic treatment such as blood circulation, blood stasis, dispersion and swelling Chinese medicine, by taking blood circulation, blood stasis, swelling drugs to promote the dissipation of local bruising and reduce local bruising. Fourth, attention should be paid to rest and reduce activities after the injury. If not, continued strenuous activities will lead to continued exudation of local bruises and aggravation.