A number of situations may interfere with the natural process that would antevert a retroverted uterus during pregnancy. Such situations include pelvic adhesions, endometriosis, uterine malformations, leiomyomata, and pelvic tumors.
Uterine incarceration
Uterine perforation
Vesicouterine fistula
Uterine inversion
Vaginal trauma
Uterine prolapse
Septic abortion
Uterine rupture