FIS1 and male infertility: Molecular docking confirmed stable binding of all six compounds to the FIS1 protein (ΔG < -5.0 kcal/mol), suggesting a direct mechanism for disrupting mitochondrial function.<h4>Conclusion</h4>By integrating multi-omics and computational toxicology, this study validates FIS1's causal protective role in male infertility, reveals its multi-level regulation, and predicts six targeting pollutants with preliminary experimental evidence.