The Comparison of Oxytocin Induced Labor and Cook Balloon Induced Labor

The Comparison of Oxytocin Induced Labor and Cook Balloon Induced Labor

Currently, the study about intervention on the induced abortion at trimester is so little. So, the investigators want to compare the safety and effectiveness of different induced labor.

In this study , the investigators want to compare the safety and effectiveness of different induced labor. The safety and effectiveness such as the success rate of induced labor and the gestation outcome,etc.

Inclusion Criteria:

• Gestation age ≥37week
• Single fetus
• No serious complications

Exclusion Criteria:

• Gestation age <37week
• Multiple fetus
• With serious complications