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Knee Pain

Knee pain can be caused by a number of issues such as overuse, arthritis, or injury.  Symptoms of knee injury can include pain, swelling, and stiffness.

Common causes of knee pain include:

Damage to the menisci
Sitting between the upper and lower leg bones at the knee joint are rubbery pads of tissue called menisci. These pads cushion the bones, acting as shock absorbers.  The menisci can become worn as you get older, and are a common reason for knee pain in middle-aged people.  A meniscus can be torn after suddenly twisting the knee joint. A tear of this kind may resolve itself without treatment, although surgery is sometimes needed to repair the injury.

Osteoarthritis
In older people, prolonged knee pain is often caused by osteoarthritis. Osteoarthritis causes damage to the articular cartilage (protective surface of the knee bone) and swelling of the tissues in and around the joint.  Osteoarthritis can sometimes affect younger people, especially those who are overweight or have had serious injuries to the knee in the past.

Torn ligament or tendon
Knee pain may be caused by torn ligaments or tendons. Ligaments are tough bands of tissue that connect the bones at the knee joint. Tendons on the other hand connect the muscles to the bone.