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Knee Bursitis

Medically reviewed by Dr James Bristol, MD, PhD · Updated 2026-11-14

Knee Bursitis: Swelling Over the Kneecap and Inner Knee
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Bursitis is inflammation of a small fluid sac near the knee. Swelling over the front of the kneecap often comes from kneeling a lot. Pain on the inner side just below the joint can be pes anserine bursitis, common with knee arthritis.

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