Elbow bursitis (EB), or olecranon bursitis, can cause a painless buildup of fluid on the elbow. It occurs due to inflammation of the olecranon bursa, the small fluid-filled sac on the tip of the elbow ...

DEAR DR. DONOHUE I pray that you can help me. I am 91 and don't have much more time. My elbow has a soft sac on it, as though it is full of water. Can you tell me what it is, and how to get rid of it?

If you have a bump on your elbow, many things may have caused it. From a skin infection to rheumatoid arthritis, here are 18 possible causes. A bump on your elbow could indicate any number of ...