Patient: Hello, Dr. Wang, my aunt suffered from lower extremity deep vein thrombosis before February this year, about the second half of February in our hospital for surgery, seems to be put a net, stayed in the hospital for a week. Then she went home and took medicine, but until now she still can’t walk and her legs are still very swollen, so I’d like to ask you to give me some advice, thank you very much. Wang Hui, General Surgery Department, Xijing Hospital: From what you said, it should be: lower extremity deep vein thrombosis syndrome. It is recommended to take warfarin orally according to the doctor’s prescription, if there is no history of hypertension, diabetes, cerebral hemorrhage or cerebral infarction, to control the prothrombin time (PT) at about 20 seconds, and the internationalized standard value (INR) at about 2.0. Moderate activity, not too much activity, activity, can wear compression stockings to improve the symptoms of lower limb swelling.