Medical Treatments

Medical tests and treatments can be an important part of getting and staying healthy. But some types of tests and treatments may actually increase a person's risk of developing cancer. Get the facts about possible links between certain medical procedures and cancer in this section.

Second Cancers Caused by Cancer Treatment

Some cancer treatments such as chemotherapy and radiation therapy may increase a person's risk of developing a different type of cancer later in life. Here we discuss the risk of second cancers that may be linked to past cancer treatment.

Radiation Exposure and Cancer

When talking about radiation and cancer, many people think of specific kinds of radiation such as x-rays or the radiation made by nuclear reactors. But there are different types of radiation, and many of them are not linked to cancer.

DES Exposure: Questions and Answers

DES (diethylstilbestrol) is a man-made form of estrogen, a female hormone. Doctors prescribed it from 1938 until 1971 to help some pregnant women who had had miscarriages or premature deliveries in the past.