Knee pain is defined as stiffness, swelling, sensitivity, or pain in one or both knees. The location and severity of knee pain may vary depending on the cause. Knee problems can also start as mild discomfort and progressively get worse. It is often caused by injury, misalignment, or degeneration.
Injury is the most common cause of knee pain. Some knee injuries respond well to self-care measures, but others require physical therapy, knee braces, medication, or injections. In some rare cases, surgical intervention is necessary.
Common injuries, especially from sports accidents, include:
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