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Knee swelling without an injury can be caused by various factors, including Arthritis, which leads to inflammation in the joint, or bursitis, where the bursa sacs become inflamed. Conditions like gout or pseudogout can also cause sudden swelling due to crystal deposits in the joint. In some cases, an underlying infection or chronic conditions like tendonitis may contribute to the swelling. If swelling persists, it's advisable to seek medical evaluation for an accurate diagnosis.

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AnswerBot

1mo ago

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