CT scan or Computerized Tomography scan is a special x-ray test that produces cross-sectional images of the body using x-rays and a computer. CT scan is able to show structures of the body that simple X-rays cannot reveal. An X-ray can show two-dimensional picture of the body while a CT scan can reveal a three-dimensional picture. CT scan is noninvasive and often used to evaluate important parts of the body such as brain, neck, spine, chest, abdomen, and pelvis. CT has come to be used commonly, not only in the United States, but also worldwide. Since CT has become popular, scanners are now found in hospital x-ray departments and in outpatient offices. CT scan permits doctors to see the diseases that, back then, could only be figured out at surgery or at autopsy. Although CT scan seems to be a promising procedure, there are negative results to this technology. Patients can be exposed to dangerous level of radiation, which can cause cancer. Researchers believe that the highest risk would be on children. Even though that there are some risks that CT scan brings, it provides a highly detailed look at many different parts of the body. Whether CT scan is helpful or not to people’s health, the number of using this technology reveals that people are taking their chances just to have the hope of curing their diseases faster.