Synovial cysts are small, fluid-filled lumps that tend to form on the lower spine. These cysts are not cancerous and may not cause any symptoms. However, they can sometimes lead to problems such as ...

DEAR MAYO CLINIC: I had two synovial cysts removed from lumbar four and five in my lower back. They have since grown back and more are forming. What are my treatment options? Synovium is the name of ...

A cyst is a sac of tissue containing fluid or air that can form in many areas of the body. Cysts often do not need to be removed unless they are causing pain or other problems. There are several ...