Bicycling fall to the knee can not walk, can be dealt with through general treatment, physical therapy, drugs, surgery and other methods. 1. General treatment: After a knee injury, rest and avoid activities that may aggravate the pain or cause secondary injuries. 2. Physiotherapy: for example, elevate the affected limb, apply cold compresses in the acute stage and hot compresses in the recovery stage. 3. Medication: If the pain is severe, anti-inflammatory and pain-relieving medications, such as diclofenac sodium, can be applied as prescribed by the doctor to relieve the pain. 4. Surgery: If the knee injury is more serious and there is a serious fracture, you need to undergo incision and fixation surgery. After a fall on the knee, if you can’t walk, you need to go to the hospital in time to take pictures to see if there are any fractures and other injuries, and then targeted treatment.