1. If there's any chance it is placenta praevia, it could detach and cause a haemorrhage.

2. Pregnancy; Placenta praevia; Diagnosis; Treatment.

3. There were not low placenta praevia in these cases.

4. This is called placenta praevia.

5. Conclusion The pregnant outcome of placenta praevia can't be prognosed by the types of placenta praevia.

6. To investigate the significance about hemostasis of placenta praevia that ligated or non-ligated ascending branches of uterine artery during cesarean section.

7. Objective: To investigate the causes of placenta praevia, the timing and methods of stopping pregnancy and measures of stopping bleeding.

8. The number of bleeding episodes and the degree of praevia are not associated with outcomes, so they can't be the proof to determine the treatment plan ahead of time.

8. try its best to collect and build good sentences.

9. Objective To investigate the relationship between the types of placenta praevia , antepartum haemorrhage and clinical outcomes.

10. Objective: To assess the clinical feature of dangerous placenta praevia in order to prevent postpartum hemorrhage and intrapartal hysterectomy.

11. Premature rupture of membrane, fetal distress, severe pregnancy induced hypertension, placenta praevia were the main risk factors of premature delivery.

12. Objective:To understand the causes and clinical manifestation of placenta praevia, its diagnosis and therapeutic methods.

13. Conclusion Caesarean section for first live birth is associated with a 47% increased risk of placenta praevia and 40% increased risk of placental abruption in second pregnancy with a singleton.

14. Conclusion The key point of reducing the incidence of pernicious placenta praevia is to step down the rate of cesarean section.