Most of the patellar tendonitis can be fully recovered, the specific recovery time depends on the degree of injury and other comprehensive analysis. Patients with mild patellar tendonitis are mostly treated conservatively, including medication (e.g. ibuprofen, diclofenac diethylamide latex, etc.), ultrasound, shockwave therapy, etc., which can effectively control inflammation, analgesia, promote local blood circulation, and help improve symptoms. Most patients can return to normal function in a few weeks to about half a year. If the symptoms cannot be relieved after conservative treatment, the doctor will take surgical treatment according to the patient’s condition. For patients who have undergone surgery, rehabilitation should be carried out under the guidance of a doctor. Generally speaking, joint function can be restored within 6 weeks after surgery, training can be resumed gradually after 3 months, and those who have recovered well after 6 months can return to normal sports. It is recommended that patients seek timely medical treatment and rehabilitation training under the guidance of the doctor to avoid aggravating the injury.