What is runner’s knee?

Runner’s knee is a condition that causes discomfort at the front of the knee, around the kneecap. It happens when the kneecap doesn’t move smoothly over the joint, leading to irritation. This condition is normally linked to activity and movement, especially those that put repeated stress on the knee.

Possible causes and risk factors include:

• Repetitive stress from running or other activities
• Muscle weakness, especially in the thighs or hips
• Tight muscles in the legs
• Improper alignment of the kneecap
• Foot structure issues or lack of support
• Changes in activity level or training intensity

Symptoms

Runner’s knee usually develops gradually and may worsen with activity. You might notice symptoms during exercise or even after sitting for a while.

Common symptoms include:

• Aching pain around or behind the kneecap
• Pain when walking, running, squatting, or climbing stairs
• Discomfort after sitting for long periods
• Clicking, grinding, or popping sensations
• Tenderness when pressing on the kneecap

How is it diagnosed?

A healthcare provider will begin with a physical exam and ask about your symptoms and activity level. They may check how your knee moves and look for areas of tenderness. In some cases, imaging like an X-ray may be used to rule out other problems.

How is it treated?

Treatment usually starts with noninvasive steps to reduce pain and improve movement.

Conservative treatments include:

• Taking a break from activities that cause pain
• Strengthening and stretching exercises
• Applying ice to reduce swelling
• Using over-the-counter anti-inflammatory medications
• Wearing supportive shoes or inserts
• Using a brace or taping for added support

If symptoms continue, a provider may recommend guided physical therapy to improve strength and alignment. Most people recover with these approaches and can return to activity gradually once pain improves.