What causes knee pain and limited range of motion? 8 possible conditions

See a list of possible causes in order from the most common to the least.



This condition is considered a medical emergency. Urgent care may be required.

A fracture is a broken bone that typically occurs when a bone is impacted by more force or pressure than it can support. In an open fracture, the ends of the broken bone tear the skin.

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What Is Osteoarthritis?

Osteoarthritis, or degenerative joint disease, causes inflammation of the joints in the body. Explore our doctor-reviewed health articles and learn more about osteoarthritis.

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Baker's (Popliteal) Cyst

A popliteal cyst, also known as a baker's cyst, is a fluid-filled swelling that causes a lump at the back of the knee.

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Ankylosing Spondylitis

Ankylosing spondylitis is a form of arthritis that primarily affects your spine. It causes severe inflammation of the vertebrae that might eventually lead to chronic pain and disability.

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Rheumatoid Arthritis Overview

Rheumatoid arthritis (RA) is an autoimmune disease, a disease in which the immune system mistakes the body's own cells for invaders. In RA, the immune system attacks the synovia, the membranes lining the joints.

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Juvenile Rheumatoid Arthritis

Juvenile rheumatoid arthritis is a form of chronic arthritis that affects children. It is a long-term autoimmune condition characterized by stiffness and swelling in the joints. Most cases of JRA are mild.

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This condition is considered a medical emergency. Urgent care may be required.

A dislocation occurs when the bones that are usually be connected at a joint separate. You can dislocate a variety of different joints in your body, including your knee, hip, ankle, or shoulder. Since a dislocatio...

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Legg-Calve-Perthes' Disease

Juvenile osteochondrosis affecting the head of the femur is also known as Legg-Calve-Perthes disease. In this condition, blood supply to the ball of the femur is cut off and the bone dies. It primarily affects youn...

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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