A CT scan, or computed tomography scan, is a medical imaging technique that uses X-rays to create detailed cross-sectional images of the body. It combines multiple X-ray images taken from different angles and uses computer processing to produce comprehensive views of internal organs, bones, and tissues. This helps doctors diagnose various conditions, including tumors, injuries, and infections. During a CT scan, the patient lies on a table that slides into a large, doughnut-shaped machine. The procedure is quick and painless, often taking only a few minutes. Patients may receive a contrast dye to enhance the images, allowing for clearer visualization of specific areas.