Swollen legs may have two factors, physiological and pathological, different factors with different medications. 1. Physiological: it may be because of older age, blood circulation is relatively poor, so the swelling will take a period of time to fully recover, at this time you can spray some Yunnan Baiyao, you can also use traditional Chinese medicine to regulate, if you can drink the soup is better, mainly is to relax the tendons and activate the blood, diuresis and swelling of the drug. 2. Pathological: the phenomenon of postoperative leg swelling may be caused by the obstruction of venous or lymphatic reflux in the affected leg. Routine vascular ligation and postoperative fixation will inevitably compress the refluxing blood vessels and lymphatic vessels, resulting in localized edema, or it may be caused by deep vein thrombosis of the lower extremity, resulting in swelling of the lower extremity. In this case, the swelling should be reduced under the guidance of the surgeon. Whichever the cause is, the swelling should be reasonably reduced under the guidance of the doctor after consulting with him or her.