Utilizing X-rays, it is a branch of the medical science which deals with the diagnosis of diseases in the internal organs of the body and other ionizing radiation methods such as x-ray and gamma. Radiology is handled in two main sections. The first one is diagnostic radiology, the second one is radiology of treatment, namely radiotherapy.

The most calcium in the bone, at least in the air, absorbs the x-ray. Blood, muscle and adipose tissue are located between these two. The bones with a large amount of calcium, which they contain, are clearly visible in the film in their finest detail. For example, cracks in the bones are easily detected in the x-ray film. Any abnormal event in the lungs, lesion (for example, an abscess), because of the weather in the black-and-white image is easily detected. In bowel blockages, the gas-fluid level gives a black-and-white image, revealing the swollen and obstructed rings of the intestine.