Sometimes, dyspepsia is a more sudden, noticeable (acute) sensation. Depending on the cause of the dyspepsia, people may have other symptoms such as a poor appetite, nausea, constipation, diarrhea, flatulence, and belching. For some people, eating makes symptoms worse. For others, eating relieves symptoms.
An X-ray machine is essentially a camera. Instead of visible light, however, it uses X-rays to expose the film. X-rays are like light in that they are electromagnetic waves, but they are more energetic so they can penetrate many materials to varying degrees.
Once the needle is in place, a dye (contrast agent) is injected into the disc that shows up white on the x-rays (Fig. 1). Figure 1. Contrast dye is injected into the center of a disc making it visible on an x-ray. A discogram works in two waysâboth to view your disc and to find the source of your pain. Your doctor injects the dye into your disc space to try to recreate the pain. If you feel pain, then that disc is the likely source of your pain.