Abstract: Various reasons can contribute to induce spontaneous rupture of uterine vessels in late pregnancy including arteries and veins. Due to the abundant blood supply of uterus in the late pregnancy, it is very easy to cause abdominal hemorrhage, shock and intrauterine fetal death in pregnant women once uterine vessel rupture occurs. The incidence of spontaneous rupture of uterine vessels in late pregnancy is low, but it is extremely dangerous, and if the diagnosis is not timely or missed, it will seriously endanger the safety of the mother and the children. Now, in order to improve the understanding of spontaneous rupture of uterine vessels in late pregnancy, the clinical data of a patient with spontaneous rupture of uterine right anterior wall in late pregnancy was retrospectively analyzed, and the related literature was reviewed to further analyze its pathogenesis, auxiliary examination and clinical manifestations, so as to deepen the understanding of the disease by clinicians and improve the level of diagnosis and treatment.

Key words: Pregnancy trimester, third, Uterus, Blood vessels, Rupture, spontaneous