If swelling of the lower extremities occurs clinically, the specific treatment should be analyzed to determine the cause of the swelling. If the swelling of the lower extremity is due to local muscle or soft tissue injury or fracture resulting in poor blood flow, the patient can be advised to rest in bed and elevate the affected extremity for specific treatment. At the same time, physiotherapy instrument baking electricity or acupuncture, acupuncture point iontophoresis and moxibustion can be applied to the affected limbs to improve local blood circulation and promote venous reflux to reduce swelling. Oral medications to activate blood circulation and remove blood stasis, for example, you can take oral tambourine pills and bone injury spirit, can also promote blood circulation. In addition, if the swelling persists, an ultrasound examination of the lower limbs should be done. If there is deep vein thrombosis in the lower extremity, minimally invasive surgery should be performed, and a venous filter of the lower extremity can be done to promote circulation and reduce swelling.