4. Maternal complications of prolonged pregnancies [7]
In prolonged pregnancies, the cesarean section rate—especially the emergency cesarean rate—is multiplied by approximately 1.5 (grade B). Nonetheless, the lack of precision in the studies prevents
us from being able to determine whether the increased cesarean risk is linked to the prolonged pregnancy or to policies that promote induction of labor starting at some specific gestational age. Prolonged pregnancy is also accompanied by a moderate increase of the risk of third- and fourth-degree perineal lesions, postpartum hemorrhages, chorioamnionitis and endometriosis (grade C).