The rising prevalence fof fetal macrosomia represents a significant challenge in obstetrics, affecting both maternal and neonatal outcomes. Such challenges include complications like perineal tears and postpartum hemorrhage. Concurrently, the frequency of labor induction practices on the rise, yet the implications for neonatal weight are inadequately understood. To address this gap, our study aims to evaluate the association between labor induction and neontal birth weight through a population-based cohort study. The findings have the potential to inform more accurate clinical guidelines, thereby enhancing the quality of maternity care.

Inclusion Criteria:

• Full-term deliveries (≥ 37 weeks of gestation)
• Singleton
• Birth weight > 4000g
• Complete medical records available for analysis

Exclusion Criteria:

• Delivery < 37 weeks
• Uterus > bi-scarred
• Presentation of the headquarters
• Maternal or fetal pathology modifying the route/time of delivery (pre-eclampsia, fetal heart rate abnormalities, cholestasis, chorioamnionitis, metrorrhagia, covering placenta, etc.)

The selected patients are thoses who gave birth at term (>37 weeks) of a macrosome fetus (>4000g) in one of the maternity wards of the civil hospices of Lyon (Hospital de la Croix Rousse, Hopital Femme Mere Enfant or Hopital Lyon Sud). Patients are subsequently categorized based on whether their labor was induced or not. The characteristics of the pregnancy, the route of delivery and the fetal outcome are then collected in the computerized medical records and analyzed.