Knee pain | Symptom Checker
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Let's see if we can figure out what's causing your knee pain.
Select additional symptoms and we'll narrow your results.

What causes knee pain? 27 possible conditions

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

21

Osgood-Schlatter Disease

Osgood-Schlatter disease is an inflammation of the area just below the knee. Learn about the symptoms, diagnosis, and treatment for this disease.

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22

Juvenile Rheumatoid Arthritis

Juvenile rheumatoid arthritis is the most common type of arthritis in children. Learn about juvenile rheumatoid arthritis symptoms, diagnosis, and treatment.

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23

Reactive Arthritis (Reiter's Syndrome)

Reactive arthritis is a type of arthritis triggered by an infection in the body.

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24

Chondromalacia

Chondromalacia, also known as "runner's knee," is a condition where the cartilage on the undersurface of the patella (kneecap) deteriorates and softens.

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25

Rheumatic Fever

Rheumatic fever is a complication of strep throat. If it's left untreated, it can cause permanent damage to your heart. Find out about symptoms and treatment.

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26

Kawasaki Disease

Kawasaki disease is a rare but serious illness that causes heart problems in children. It is a form of a condition called vasculitis (inflammation of the blood vessels). The blood vessels include arteries, veins, an...

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27

Legg-Calve-Perthes' Disease

Legg-Calve-Perthes disease is when the top of the femur, called the ball, doesn't receive enough blood.

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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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