Shadi Vafaei - Student of Midwifery, Islamic Azad University of Bonab Unit, Bonab, Iran.
Niloo Ebadian - Student of Midwifery, Islamic Azad University of Bonab Unit, Bonab, Iran.
Javad Babri - Member of Iran and LMHT Homeopathic Islamic Azad University of Bonab Unit, Bonab, Iran

Cancer is asymmetrically dividing cells of the body. Cancer patients receiving treatments such as chemotherapy and radiotherapy and increases the likelihood of infertility need to preserve their fertility before starting cancer treatment. Because these treatments are damaging reproductive cells. Such methods used to preserve fertility in women, can be noted as ovarian cortex freezing, embryo freezing, shifting ovary and ovarian tissue freezing. Although many of these methods are associated with disadvantages, but in some cases live embryos derived from these processes in humans. The methods can be used in men with cancer are obtaining and freezing the sperm samples, testicular tissue freezing or isolating spermatogonial stem cells and trying to replant it. The aim of this study is to examine these methods widely and presenting them to eager and needy people. Articles reviewed in this study have been limited to search online that was searched in the database SID, Science direct and Google, by the following words: Preserving fertility, freezing, cancer, fertility and cancer, side effects of chemotherapy, radiation effects. The analysis was based on their reputation and many articles due to lack of uniformity in our paper have been excluded. The method of preserving fertility in both men and women can be helpful with cancer, but only in special circumstances, such as sufficient time is available before starting cancer treatment. Also the methods applied in both sexes in children and adolescents are different from each other because in children mature egg and sperm of men and women were not available. But despite all restrictions on several studies, the success of these methods have been mentioned. The use of methods of fertility preservation for cancer in men and women with regard to the person's marital status, type of cancer and age, if done, can be successful. But should also pay attention to moral and life values using these methods.

Fertility preservation, Cancer, Freezing, Fertility and cancer, Chemotherapy, Radiotherapy