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What causes joint pain, joint swelling and knee pain? 12 possible conditions

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


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

Since a dislocation means your bone is no longer where it should be, you should treat it as an emergency and seek medical attention as soon as possible.

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Arthritis is inflammation of the joints (where bones meet) in one or more areas of the body. This condition is most commonly seen in adults, but it can also develop in children and teens.

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Bursitis is an inflammation of the bursae, the fluid-filled sacs that help reduce friction where tendons, skin, and muscle tissues meet bones. Inflammation can cause discomfort and limit range of motion.

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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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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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Tendon Sheath Inflammation (Tenosynovitis)

Tendons are covered by a protective sheath called synovium, which keeps tendons lubricated. Injury to this area can disrupt this function, causing inflammation.

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Gout Overview

Gout is a type of arthritis caused by too much uric acid in the blood. When the concentration of uric acid gets too high, sharp urate crystals form and collect in the joints, causing swelling and intense pain.

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Rheumatic Fever

Rheumatic fever is a possible and potentially serious complication of strep throat. It tends to occur in children between five and 15 years old. Rash is one possible sign of this condition.

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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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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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Kawasaki Disease

Kawasaki disease is a rare, serious condition causing heart problems in children. The disease can also affect the lymph nodes, the skin, and the mucous membranes found inside the nose, throat, and mouth.

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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.