What Causes Knee Pain without Injury

Sometimes the cause of your knee pain is obvious: a twist, misstep or strain can strike at any time during a walk or a run. Other times, patients can suffer knee pain without injury and are unsure of the source of their discomfort.

You’ll need to consult with a physician to determine the cause of your knee pain, but there are several common causes of knee pain without injury.


Tiny sacs of fluid cushion the bones in the knee joint. When they become infected or irritated, they can become inflamed, leading to a condition known as bursitis. This painful condition may be accompanied by redness around the joint, tenderness at the knee and in some cases, fever.


Tendons are the tissue that binds muscle to bones, and tendinitis is common in the knee. It’s characterized by a dull ache in the knee that increases with use. It may become swollen or painful. In some cases, rest alone can combat tendinitis, but severe cases require medical intervention.

Baker’s cyst:

Also known as a popliteal cyst, a Baker’s cyst is a fluid-filled swelling at the back of the knee. Because of the swelling, it can restrict movement. It can be a sign of an undiagnosed knee injury. In many cases, a popliteal cyst will go away of its own accord. Sometimes, fluid may need to be drained from the cyst.


Inflammation and swelling of the knee joint itself, this condition is caused by the deterioration of the knee. It can be caused by past injury, poor posture or obesity.

Rheumatoid arthritis:

This autoimmune disease is similar to osteoarthritis, but is often not localized to a single joint, and is indicated by stiffness, swelling and pain.

Knee injuries don’t have to be catastrophic, so there’s a chance that your knee pain is caused by an undiagnosed injury such as damaged cartilage, a torn ligament or meniscus or dislocation.

Because there are many causes of knee pain without injury it’s necessary to seek treatment with experienced doctors who can diagnose your condition. Call 303.772.1600  or fill out our online appointment request form to schedule your consultation with Front Range Orthopedics and Spine today.

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