The bruising phenomenon caused by knocking the legs is actually caused by the rupture of blood vessels, blood leakage to the dermis or subcutaneous caused by the body’s reaction to the absorption of part of the blood caused by the phenomenon. It has nothing to do with detoxification, it is recommended to use a hot towel to apply hot compresses locally to alleviate the symptoms of bruising, and usually take some vitamin C tablets to promote the recovery of the body. If you need to do detoxification, consider the use of traditional Chinese medicine cupping, gua sha and other therapies, can be discharged from the body of blood stasis, increase the health of the body, so that the body and mind to relax, relieve fatigue and other symptoms.