Patella fracture, in general, it takes 3~6 months for the fracture to heal and more than 2 years to recover, depending on the individual. After a patient has a patella fracture, if it is a stable fracture, there is no obvious displacement and other phenomena, generally through the regular conservative treatment, it can heal in about 3 months. If the patella fracture is an unstable fracture with obvious displacement, it needs to be treated by surgery, and the recovery time will be longer, about 6 months to heal. Because the patella can mainly load, knee flexion, is an important part of the knee joint, patella fracture about 3~6 months for healing, this stage is not recommended to participate in strenuous exercise, or may lead to re-cracking of the bone, can be appropriate for resistance training, confrontation training and other functional exercises. 6 months after the participation in some sports, fully recovered to together to more than 2 years.