Isotope therapy refers to the use of certain radioactive elements or radioisotopes, which emit radiation through decay, to treat specific diseases. It is used clinically to treat cancer and tumors, and congenital hemangiomas in newborns. Isotope therapy also includes cobalt 60 and iridium 192. different radionuclides have different activities and half-lives. Therefore, the protection required during treatment may also be different. In addition to treating diseases, isotopes are also used for diagnostic imaging, sterilization of medical supplies, mechanistic studies and biomedical research. Isotope therapy requires real-time monitoring and regular checkups. When uncomfortable symptoms occur, you should go to a regular hospital and cooperate with your doctor.