By passing x-rays through the body over a period of time, fluoroscopy makes a video of activity inside a part of the body in real-time. Ionizing radiation is contained in X-rays. The use of fluoroscopy can help diagnose (find out the cause of) health problems such as heart disease or intestinal disease. Also, it can be used to guide orthopedic surgery, implants, and injections. Healthcare providers can see inside organs, joints, muscles, and bones with this tool. In a fluoroscopic guided injection, medicine is injected directly into the joint under a special imaging device called a c-arm. Combining a corticosteroid with a numbing agent, it is primarily used for therapeutic purposes. Inflammation of a joint can be temporarily relieved by steroid injections, a minimally invasive procedure. By administering these injections, the source of the pain can be determined, as well as the discomfort can be relieved.