Cancer is a devastating diagnosis, affecting approximately 14 million new people per year per the National Library of Medicine. As technology and research has advanced, the possibility of survival has increased in tandem with the application and understanding of radiation therapy. Out of the 14 million individuals diagnosed with cancer, a significant percentage may achieve cure/remission, and depending on the type of radiotherapy used, long-term survival rates may increase. Unfortunately, many misconceptions continue to surround radiotherapy, including the duration of a radiation treatment course and whether a specific type of cancer is susceptible to radiation. In order to clarify some of those misconceptions this article aims to clarify a few points about radiotherapy treatment and how frequently it is used.