The precautions to be taken after inferior vena cava filter implantation include postoperative care, taking medication on time and regular checkups. 1. Post-operative care: mainly include the care of the implantation point, and need to be braked, and pay attention to observe whether there are bruises, hematomas, and whether there are symptoms such as lumbar pain, abdominal pain, etc., and if the pain is more serious, it should be examined in a timely manner, so that the bleeding can be detected in a timely manner, and treatment can be carried out. 2. Take medication on time: mainly take anticoagulants, such as rivaroxaban, and do not stop taking medication. 3. Regular checkup: after the operation, you should have checkups on time to observe whether the inferior vena cava filter has been displaced or not, and have ultrasound of the blood vessels of both lower limbs as well as anticoagulant function checkups in order to evaluate the treatment of thrombus. After the implantation of the inferior vena cava filter, you should follow the doctor’s advice to take care of yourself, and if there is any abnormality, you should consult the doctor in time.