Bursitis is a swelling of a fluid sac near the joints in your body. A “bursa” is the actual sac that contains fluid and provides lubrication for the tendons and muscles to slide over the bone effortlessly. In certain soft tissue injuries, your bursa can swell which can reduce the movement to the affected area. Often times, bursitis and tendonitis go hand in hand since they both use the same soft tissues. In most situations bursitis heals on its own with rest, but there are times when surgical intervention may be required.