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Knee Pain Health Center

Knee Pain

Knee pain can be caused by a sudden injury, an overuse injury, or by an underlying condition, such as arthritis. Treatment will vary depending on the cause. Symptoms of knee injury can include pain, swelling, and stiffness.

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Topic Overview

Most people have had a minor knee problem at one time or another. Most of the time our body movements do not cause problems, but it's not surprising that symptoms develop from everyday wear and tear, overuse, or injury. Knee problems and injuries most often occur during sports or recreational activities, work-related tasks, or home projects.

The knee is the largest joint in the body. The upper and lower bones of the knee are separated by two discs (menisci). The upper leg bone (femur) and the lower leg bones (tibia and fibula) are connected by ligaments, tendons, and muscles. The surface of the bones inside the knee joint is covered by articular cartilage, which absorbs shock and provides a smooth, gliding surface for joint movement. See an illustration of the structures of the knee.

webMD Video

Show or hide information about video: When to Have Knee Surgery   When to Have Knee Surgery

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Using functional tests, such as timed walking or rising from a chair, may help you decide when to have knee-replacement surgery.

Watch Video: When to Have Knee Surgery (opens in a new window)

Show or hide information about video: Identifying Early Knee Osteoarthritis   Identifying Early Knee Osteoarthritis

Show or hide information about video: Exercises for Daily Life   Exercises for Daily Life

Show or hide information about video: Guided Knee Replacement   Guided Knee Replacement

Show or hide information about video: Tantalum Knees   Tantalum Knees