A uterine scar from a previous cesarean section is the most common risk factor. (In one review, 52% had previous cesarean scars.) Other forms of uterine surgery that result in full-thickness incisions (such as a myomectomy), dysfunctional labor, labor augmentation by oxytocin or prostaglandins, and high parity may also set the stage for<unk> . In 2006, an extremely rare case of<unk>  in a first pregnancy with no risk factors was reported.<unk>  during pregnancy without a prior cesarean section is one of the major diagnostic criterion for vascular Ehlers-Danlos syndrome (vEDS).
Uterine rupture
Uterine perforation
Obstructed labour
Septic abortion
Placental abruption
Placenta praevia
Toxic abortion
Uterine inversion