A high patella is generally defined as a patella that is positioned too high relative to the femoral trochanter, which in turn produces a range of clinical symptoms. High patella refers to the patella position where the patellar articular surface is higher than the femoral trochanter, resulting in reduced contact between the femur and trochanter, which causes increased patellofemoral joint pressure and decreased medial patellar stability, which can lead to patellar instability, patellar chondromalacia, and patellofemoral osteoarthritis, which produces knee pain and other symptoms. Generally the diagnosis of high patella is based on imaging examination, and can be confirmed when the vertical distance between the lower edge of the patellar articular surface and the surface of the medial tibial plateau/length ratio of the patellar articular surface is greater than 1 in a lateral X-ray film with the knee flexed at 30°. When there is discomfort in the patellar region, it is necessary to actively consult the doctor for a definitive diagnosis and then follow the doctor’s instructions for targeted treatment.