Knee falls swollen first need to clarify whether there is a knee fracture, no fracture is mostly due to soft tissue contusion, can be relieved through physical therapy, drug therapy and surgical treatment. 1. Physical therapy: if the knee joint X-ray is clear that there is no fracture, first of all, you need to brake the knee joint, ice packs, cold compresses, while elevating the affected limb to avoid further aggravation of edema; 72 hours after the relief period, you can towel hot compresses on the knee joints, massaging the muscles of the thighs and legs, red light physiotherapy and other ways to accelerate the edema subside, relieve the fatigue of the soft tissues around the joints. 2. Medication: patients with obvious pain symptoms after injury can take indomethacin, meloxicam and other drugs to relieve pain; patients with obvious edema can take diosmin tablets, horse chestnut seed extract or static drip of sodium heptaphyllum saponin, mannitol and other drugs to eliminate edema quickly. The above drugs need to be used under the guidance of a doctor, avoid self-medication. 3. Surgery: If the knee is fractured after a fall, conservative treatment such as plaster or external fixation with a brace can be used for fractures that are not obviously displaced. For fractures with obvious displacement or damage to the articular cartilage, it is recommended to perform surgical reduction and internal fixation. If the swelling of the knee is not relieved after the fall, or accompanied by other symptoms, the patient should go to the hospital in time, to identify the cause of the problem and then give targeted treatment.