Cervical prolapse complicating pregnancy.

Uterine cervical prolapse concurrent with pregnancy is rare. This article reports three cases of second-degree cervical prolapse during pregnancy. Two women developed prolapse in the late second trimester while one women had preexisting prolapse. Both women with prolapse developing during midpregnancy were treated unsuccessfully with a vaginal pessary to maintain cervical placement. Premature labor occurred in both of these women, resulting in one preterm birth. Although cervical prolapse is rarely encountered in pregnancy, the threat of preterm labor and delivery warrants close observation.