Results indicated that high-dose oxytocin significantly increased the risk of neonatal hyperbilirubinemia (OR: 7.933, 95% CI: 2.923–21.527, p < 0.001), while moderate-dose exposure also elevated risk (OR: 3.034, 95% CI: 1.059–8.692, p = 0.039). The gene discussed is OXT; the disease is Hyperbilirubinemia.