DVT of more than 10 years can be treated with medication, surgery and general therapy. 1. Drugs: If the degree of DVT is not particularly serious and the area has not reached more than 70%, you can use anticoagulant drugs such as warfarin sodium tablets to intervene, and at the same time, you can cooperate with low molecular heparin to promote the local blood circulation. 2. Surgery: If the DVT is more serious and the area is bigger, and the drug treatment can not control the condition effectively, then you can intervene through vein thrombectomy and other related surgeries to achieve the effect of controlling the condition. 3. General therapy: daily elevation of the affected limbs, wearing compression stockings, consuming fruits and vegetables rich in dietary fiber, avoiding spicy and stimulating diet. During the treatment period, DVT patients should pay attention to the changes of their own conditions, and if abnormal discomfort occurs, they should immediately inform the doctor and take relevant measures to intervene.