American Podiatric Medical Association (APMA) - If you are experiencing pain while walking or running, bursitis could be a reason why. This inflammation and swelling of fluid-filled sacs in your feet can
Dr. L. David Richer- Foot, Ankle & Leg Center - Bursa are fluid-filled sacs that provide cushioning and lubrication at areas where muscles and tendons move over bone, reducing friction. The foot
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