The leg was hit purple, this situation usually take the following measures: first, to go to the hospital to take a film examination, to see if the location of the bruise has a fracture, if there is a fracture, the need for external fixation of plaster or surgical incision plate steel nail internal fixation. If there is no injury, you must rest the injured part, elevate it above the horizontal position of the heart, to be able to reduce local swelling by gravity, as well as to promote the absorption of bruising. Second, we must pay attention to keep warm and not to get cold, which will lead to a slowing down of blood circulation and accumulation of inflammatory metabolites, resulting in a slower absorption of bruises. Thirdly, take oral Chinese medicine to activate blood circulation, relieve blood stasis, reduce swelling and pain, such as blood circulation and pain capsules and Dazhiri capsules, which can improve blood circulation and promote the absorption of bruises, and use a warm water bag for hot compress to dilate blood vessels and promote the gradual absorption of bruises by increasing the temperature. After the above treatment, the symptoms will be relieved significantly in 5-7 days.