Although the radiation therapy has these benefits, there still some of the cons. Because the radiation therapy focuses on only a particular area of the body that contain the tumor it is can not be used when the cancer located on different parts of the body or diffuse through the body. On the other hand, radiation therapy is limited to a specific area because of the fairness of it is possible to cause damage by tumoricidal dose to the critical structures so it may damage normal cells. And one of the things pregnant women or women in general should be know about it is they should not get radiation therapy during first three months of a pregnancy because the high risk to injure the fetus So they're supposed to not get pregnant before treatment.
