Chondromalacia is the most common cause of chronic knee pain. It develops due to the softening of the cartilage beneath the knee cap as a result of overuse, injury, or other factors.
Knee Bursitis is inflammation of a bursa, a small, fluid-filled, pad-like sac that cushions pressure between bones and tendons and muscles near the knee joint. Knee Bursitis commonly occurs over the kneecap or on the inner side of the knee below the joint, often causing pain and limiting mobility.
A torn meniscus is an injury to one or two of the C shaped pieces of cartilage that curve around the inside and outside of the knee. The main function of the menisci is to stabilize and cushion the joint.