Knee bursitis

The bursa of the knee is a closed fluid-filled sac located in front of the kneecap. The bursa serves as a cushion to prevent joint damage and reduces friction between bones, muscles, and tendons. When the sac becomes inflamed, this is called bursitis.

The medical term for the knee bursa is bursitis prepatellaris; colloquially, it is also called a 'prayer knee'.

How does the bursa of the knee become inflamed?

Although the bursa serves as a cushion, it is not designed for prolonged loading. The most common causes of an irritated bursa are activities in which one kneels or leans on the knees, such as during prayer. Sports in which you fall on the knees—such as judo or wrestling—also increase the risk of bursitis.

What are the characteristics of knee bursitis?

The signs of knee bursitis are fairly easy to recognize. A swelling almost always develops at the front of the knee. This swelling may feel warm and painful and appear red. The knee may also be more difficult to bend due to the swelling.

How is knee bursitis treated?

Knee bursitis generally heals on its own. However, it is important to get enough rest and reduce pressure on the knee. In some cases, medications are prescribed, treating the inflammatory signs with anti-inflammatories such as naproxen or diclofenac.

How can I prevent knee bursitis?

Make sure there is not too much or prolonged pressure on the knee. If you regularly work or pray on your knees, it is advisable to change position regularly. If you are at risk of bursitis because of work or sport, it is wise to wear kneepads to reduce pressure on the knees.

Do the self-check

Do the self-check and find out whether you have knee bursitis. Answer a number of questions about your knee symptoms and then view the result.