Table 3. Short-term vs. long-term effects of chemotherapy on fertility.
Time Frame Effects on Women Effects on Men Recovery Potential Influencing Factors Reference
Short-term Temporary amenorrhea (no periods) and hormonal changes during treatment. Temporary low sperm count (oligospermia) or no sperm (azoospermia) during treatment. High, especially in younger patients; often reverses within months to a year. Age, milder drugs (e.g., taxanes). Hao et al., 2019
Long-term Premature ovarian failure (POF) or diminished ovarian reserve (DOR), leading to permanent infertility. Permanent azoospermia or reduced sperm quality, causing lasting infertility. Low with high-dose gonadotoxic drugs; partial recovery possible in some. High doses, alkylating agents (e.g., cyclophosphamide), older age. Yumura et al. 2023