X-rays are commonly used in medicine for diagnostic purposes because they can pass through body tissues and create images of internal structures like bones, lungs, and organs. This helps doctors identify fractures, infections, tumors, and other conditions.

X-rays work by passing a small amount of radiation through the body. Different tissues absorb different amounts of radiation, allowing for the creation of images. X-rays are quick and painless, making them a valuable tool in diagnosing various medical conditions.