Received February 16, 2018
Accepted December 14, 2018

Objective: evaluate if the occurrence of a diagnosis of cancer interferes in ovarian function, prior to the treatment of the disease. Material and methods: data from medical records, for this observational retrospective study, about ovarian stimulation cycles for oocytes cryopreservation. Results: The mean age was 35.13 ± 3.72 years, and 51.6% of the pacients were between 36 and 40 years. The majority of patients were single, 57.6% in both groups. 82.1% of the patients presented normal body mass index (BMI) in both groups. Most women had no pregnancies (85.5%), no births (95.1%), and no abortions (89.6%) prior to cryopreservation. The mean number of oocytes obtained for non-cancer patients was 11.4 ± 8 and for cancer patients this number was 13.8 ± 9. The mean number of frozen mature oocytes was 9.7 ± 7 for the non-oncological group and 11.2 ± 7.2 for the oncological group. The majority (63.1%) of the patients had up to 10 oocytes frozen per cycle. The most incident cancer was the breast cancer. There was no significant difference in ovarian response according to the type of cancer. Conclusion: The response to ovarian stimulation of oncological and non-oncological patients was similar, according to the number of oocytes obtained and frozen from the two groups.