During the acute stage of venous thrombosis, it is necessary to pay attention to avoiding strenuous activities, elevating the affected limbs and strict anticoagulation treatment. 1. Avoiding strenuous activities: In the acute stage of venous thrombosis, it is necessary to pay attention to bed rest as much as possible and avoid strenuous activities, so as not to lead to the dislodgement of thrombus, which will affect the normal blood circulation of the human body. 2. Elevate the affected limbs: In the acute stage of venous thrombosis, it is necessary to elevate the affected limbs to help promote local blood circulation. 3. Anticoagulant therapy: Heparin, warfarin and other medicines should be used during the period of illness to achieve the purpose of anticoagulant therapy. There are other precautions in diet and lifestyle during the acute phase of venous thrombosis, and it is recommended to consult a professional vascular surgeon to avoid adverse effects.