Knee pain is one of the most common complaints of Americans of all ages. The pain can result from an injury, arthritis or other condition. The location and severity of knee pain often varies with each person depending on the cause of the problem.
Signs and symptoms of knee pain include:
Swelling
Redness
Stiffness
Weakness or instability
Popping or crunching noises
Inability to fully straighten the knee
The pain in your knee can be caused by a number of factors.
Common causes of knee pain are:
Injury
A knee injury can affect any of the many ligaments, tendons, cartilage or bursae sacs that surround or consist of the knee joint.
Some of the most common knee injuries are:
Anterior cruciate ligament (ACL)
Meniscus
Bursitis
Tendinitis
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