Side effects of a scan

The side effects of a medical scan depend on the type of imaging used. For example, X-rays and CT scans involve exposure to ionizing radiation, which carries a very small risk of cancer over time. MRI scans use strong magnetic fields and may cause discomfort for those with metal implants or claustrophobia. Ultrasounds are generally considered safe, with no known side effects, as they use sound waves rather than radiation.