Received July 13, 2019
Accepted December 15, 2019

Objective: Present clinical and laboratory data of a Brazilian social program for cancer fertility preservation. Methods: A descriptive observational study was conducted between July 2011 and December 2018. 246 patients were included at the social program in a private assisted reproduction clinic in Santo André/Brazil for oocyte cryopreservation before starting oncological treatment. Results: 246 cancer patients resorted to fertility preservation before initiating cancer treatment. These were diagnosed with 27 different types of cancer, being the breast type the most prevalent. 2528 MII oocytes (mean of 10.3 oocytes per patient) were vitrified. Four patients thawed their oocytes to submit in vitro fertilization, three had embryos transferred and one achieved pregnancy. Conclusion: Preservation of fertility offers patients, especially at reproductive age, a viable way to perform their cancer treatment without compromising future gestation. It is important that oncological patients are duly counseled by the professionals so, if they wish, they can have the possibility to guarantee her fertility preserved.