Jumper's knee is an overuse injury that happens when frequent jumping, running, and changing direction damages the patellar tendon.
Knee injuries are common among young athletes. Learn about causes, treatments, and prevention.
MCL injuries can happen in active and athletic kids, when excessive pressure is put on the knee joint, resulting in a torn ligament.
Osgood-Schlatter disease (OSD) is one of the most common causes of knee pain in adolescents. It's really not a disease, but an overuse injury.
Osteosarcoma is the most common type of bone cancer. Boys are more likely to have osteosarcoma than girls, and most cases of osteosarcoma involve the knee.
Patellofemoral pain syndrome (or runner's knee) is the most common overuse injury among runners, but it can also happen to other athletes who do activities that require a lot of knee bending.
A knee X-ray can help find the causes of pain, tenderness, swelling, or deformity of the knee, and detect broken bones or a dislocated joint.