Anticoagulation for pulmonary embolism will not clear the blood clot; thrombolytic therapy is needed to clear the clot. Anticoagulation for pulmonary embolism can prevent patients from forming new clots again and can shrink the clots, but it cannot directly dissolve them. Commonly used anticoagulant drugs for pulmonary embolism include heparin and warfarin. The first choice of treatment for pulmonary embolism is not anticoagulant therapy, but thrombolytic therapy according to the type of pulmonary embolism, when it meets the indications for thrombolytic therapy, thrombolytic therapy is preferred. The indications for anticoagulation are mainly pulmonary embolism with thrombolytic therapy and acute pulmonary embolism with normal blood pressure and no right heart insufficiency. Anticoagulation therapy can consolidate the effect of thrombolysis and avoid recurrence of embolism. Anticoagulation treatment is usually about 6 months, and surgery can be chosen if the treatment is not effective. During the period of anticoagulation, pay attention to the diet to be light and easy to digest, do not eat spicy, stimulating, greasy food, pay attention to appropriate nutrition.