Elbow bursitis is caused by inflammation of the bursa. The bursa is a small fluid filled sac which provides lubrication and cushion among tissues and bones. The bursa sac is located at the tip of the elbow, forming a soft lubricating cover when a person extends and bends the elbow. When the sac is swollen or inflamed, the bursa will produce more fluid. The fluid buildup will create pain in the area. People who do repetitive work tend to develop elbow bursitis over time. Treatment options for elbow bursitis can be either surgical or non-surgical.