First, you need to pay attention to proper activities, especially not lying down for too long after surgery. It can massage the legs and promote blood supply.
Second, the filter screen can be placed preventively to avoid discomfort.
Third, you need to take anticoagulant drugs, which can effectively prevent diseases.
Fourth, check it regularly, especially B-ultrasound to see if there is thrombus, and then check it once every six months.