I have a swollen bump on my kneecap. Could it be from kneeling to pray?

How it develops

During prayer the knees take weight on the floor many times a day. On a thin mat over tiles or marble, that pressure lands directly on the bursa in front of the kneecap. Over time it can thicken and fill with fluid, producing a soft bump that may feel like a water balloon.

Often it is painless, and the main concern is how it looks. It can be tender when kneeling and may get bigger after long night prayers, for example in Ramadan. A thickened, rough patch of skin over the kneecap is also common in people who kneel often and is not the same as bursitis.

Other causes of a bump on the knee

• A fall onto the kneecap, which can cause sudden bursitis with bleeding into the sac
• Swelling inside the whole knee joint, which makes the entire knee puffy rather than one bump
• A swelling just below the kneecap over the tendon, from the infrapatellar bursa
• In teenagers, a hard bony bump below the kneecap from Osgood-Schlatter disease

Praying more comfortably

• Use a thicker prayer mat or add a soft cushion under the knees
• Lower yourself slowly and support your weight with your hands
• Avoid dragging or twisting the knee on the floor
• Keep a graze on the knee clean and covered

If kneeling remains painful, some patients choose to use a chair for a period while the bursa settles. Patients can discuss the religious ruling with a scholar; medically, removing pressure is what lets the bursa calm down.

When to see a knee surgeon in Doha

Seek same-day care if the bump becomes red, hot and increasingly painful, or you develop fever, as these may mean infection. Book an assessment if it has not gone down after two to three weeks of reduced kneeling, keeps returning, or the knee joint itself is painful or swollen. At Aman Hospital, Dr. Gelber examines the bursa and joint, and an ultrasound is used if it will change the plan.