The purpose of anti-embolism stockings is to prevent or treat deep vein thrombosis in the lower extremities, which can promote blood flow by applying gradient pressure to the legs and prevent thrombosis from forming. There are different pressure levels, lengths and styles of anti-embolism stockings, which need to be chose according to the patient's condition and individual circumstances. The wearing and maintenance of anti-embolism stockings also need to pay attention to some details to ensure their effect and durability.