Spontaneous prelabor unscarred uterine rupture in primigravida: a case report and review of literature

Spontaneous uterine rupture (SUR), a public health problem in developing countries, is a rare but hazardous obstetric complication with significant maternal and fetal morbidity and mortality. Cases of rupture are more likely to occur in a scarred uterus, usually after a previous caesarean delivery. Spontaneous unscarred uterus rupture (SUUR) in primigravid women is usually unexpected and extremely rare. Risk factors for SUUR include high parity, placental abnormalities, and uterine anomaly. Hereby, we presented a case of spontaneous unscarred uterus rupture during her pregnancy of 36 weeks +2 days in a primigravid woman without apparent causes. We then performed literature review covering similar cases to further remind physicians of the possibility of SUUR.