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Our knees keep us active—and upright. They are also involved in profound moments like proposing, getting weak with emotion, or taking a knee to protest. But when they ache, you really feel it.

All articles in Knee

Sharp knee pain symptoms are often a sign of a serious knee injury. Learn about the causes of severe knee pain and treatment options for stabbing knee pain.

Back-of-knee pain can be caused by tendonitis, arthritis, a Baker’s cyst, sciatica, or muscle strains. You may be able to treat it with OTC pain medications and rest, but see a healthcare provider if the pain isn’t getting better.

Aching knees can be caused by damage to knee cartilage, ligaments, tendons, or other muscle tissues. The most common cause of achy knee pain include a meniscal injury, patellofemoral pain syndrome, or runner's knee. Read on for more information on causes and treatment options.

Are you experiencing a hard bump on the knee? Read more below to learn about six possible causes, questions your doctor may ask about your symptoms, and more.

Fortunately, your talkative knees are usually not a cause for concern. But when those clicks, pops, and cracks occur regularly, it may be time for consultation.

A swollen knee is mainly a sign of excess fluid in the knee. Learn about common causes of knee swelling symptoms; including bursitis, gout, arthritis and overuse.

Understand your knee redness symptoms, including 6 causes & common questions.

Are you experiencing itchy knees? Itchy knees can be caused by a variety of underlying conditions that range in severity, from common conditions like eczema to rare conditions like dermatofibroma. Read more below to learn 7 possible reasons you're experiencing itchy knees and how to treat it.

Find out how to treat your patellar tendinitis

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Knee arthritis develops when the tough, flexible tissue that protects the bones of your knee joint wears away, causing pain and swelling. The condition can’t be reversed, but there are many treatment options, including pain relievers and physical therapy.

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Understand your pop in the knee symptoms, including 9 causes & common questions.

Understand your knee tearing sensation symptoms, including 5 causes and common questions.

Understand your buckling knee symptoms, including 8 causes & common questions.

The feeling of a loose knee cap is most commonly caused by an injury that has sprained or tore ligaments. A meniscal or anterior cruciate ligament (ACL) injury can also cause knee instability and pain.

Knee locking can be troubling and painful. While it may only happen once, if it happens frequently or makes it impossible to walk, you may have a more serious condition.

ACL injuries are one of the most common types of knee injuries. They often happen when you play certain sports like soccer and football. Surgery may be needed.

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Numbness in the knee is primarily caused by problems with the nervous system, and is often associated with with one or more additional symptoms, such as tingling, pain, or swelling.

Understand your knee stiffness symptoms, including 8 causes & common questions.

The kneecap (patella) is the bone that covers the knee joint. Abnormalities in the support structure of the knee and unusual forces can cause a dislocated kneecap.

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This article will review the symptoms, causes, and management of Osgood-Schlatter disease. Symptoms include pain over the upper shin below the kneecap that is made worse by activities — often on one side — that also involves tenderness and swelling in the affected area.

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Prepatellar bursitis is an inflammation of a fluid-filled sac (bursa) located in front of the knee that normally acts as a cushion to help reduce friction.

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The usual cause for a painless bump on the knee derives from skin conditions like cysts, warts, or abscesses. Other causes for a lump on the knee with no pain include non cancerous skin growths.

Understand your pain in the back of the knee symptoms, including 8 causes & common questions.

A meniscus tear in the knee means the cartilage that helps absorb shock is damaged. It causes pain and a feeling of catching, popping, or buckling. You need to let it heal or you risk doing permanent damage.

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Patellofemoral pain syndrome is pain around the kneecap (the patella). It can happen because of over exercising or if muscles are not strong enough. It’s easily treatable and you can strengthen your muscles to help prevent it.

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