Jumping rope can damage the knee. The human skeletal structure, including the knee joint, which is a relatively special structure, in addition to bony tissue, also includes local cartilage tissue. If the joint through inappropriate methods of use will form damage. The jump rope is a local impact on the bony tissues above and below the knee joint, namely the distal end of the femur and the proximal end of the tibia. The middle structure is the meniscus and synovial membrane in the joint, the bony side that is cartilage, if the continuous jumping movement will cause damage to it. Of course some athletes, the quadriceps are more developed, the ligaments of the joint are more developed, the protection of the joint may be better. But if usually do not often do sports, in a short period of time to jump rope, it will cause damage to the joint, there will be cartilage surface, synovial impact, the formation of aseptic swelling, and even some joints will appear fluid situation, and there will be increased pain. So jump rope in the clinical, generally is not very advocate to do, because the sport on the joint will indeed cause some damage.