It is also important to analyze the cause of the pain you feel under your knee when playing basketball. Most of them are considered to be chronic injuries, and if the pain is frequent, it is also considered to be a chronic injury. For example, in jumping knees, when a patient plays basketball regularly, the jumping process may cause a chronic strain on the patellar ligament where it meets the bone, which is a type of sports injury. But playing basketball is also a kind of sport, so it is important to determine whether there is pressure pain in the patellar ligament during resistance or even knee movement, or whether there is edema at the junction of the tendon and the bone through MRI, which is the basis for determining jumper’s knee, that is, patellar ligamentitis. For example, some young people are born with a fat pad that is enlarged, and during excessive exercise the fat pad is squeezed by the femoral condyle, patella and tibial plateau, causing congestion, edema and chronic strain leading to pain. In addition, strenuous exercise and the process of playing basketball can lead to injury to the anterior horn of the meniscus. In addition, adolescents can also experience pain below the anterior knee during exercise. Clinically, it is more common to see osteochondritis of the tibial tuberosity, also called epiphysitis, because during bone development, before the epiphyseal cartilage is completely closed, the tibial tuberosity is an independent developmental center, and strenuous exercise, such as playing basketball, can stimulate the epiphyseal plate, resulting in aseptic inflammation, and the patient can also experience pain below the anterior knee.