BACKGROUND: fertilization/intracytoplasmic sperm injection (IVF/ICSI) remains unclear. METHODS: A single-center retrospective cohort study was conducted at the Reproductive Medicine and Genetics Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology between January 2015 and December 2022. Propensity score matching (PSM) was applied to match the baseline data of the two groups, and the primary outcome were the conservative/optimistic cumulative live birth rates (CLBR) across multiple cycles. RESULTS: < 0.05). After multiple oocyte retrievals, the conservative CLBR for malignant tumors/precancerous lesions plateaued at around 53% after four cycles, while optimistic CLBR reached 70% after four cycles. Among patients with prior malignant tumors/precancerous lesions who completed follow-up, the overall recurrence rate after IVF/ICSI treatment was 7.03% with no adverse events. CONCLUSIONS: Patients with a previous history of malignant tumors/precancerous lesions demonstrated inferior live birth outcomes compared to controls. Multiple ovarian stimulations improved live birth opportunities without significantly increasing the risk of tumor recurrence.
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