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Updated: Aug 30, 2026

Inducing Pseudopregnancy in Female Mice Without the Need for Vasectomized Males Prior to Non-Surgical Embryo Transfer or Artificial Insemination
Published on: July 7, 2023
[Clinical analysis of multiple pregnancy reduction]
Li-Xin Zhao1, Zi-Jiang Chen, Yu-Hua Shi
1Reproduction Medicine Center, Shandong Provincial Hospital, Jinan, Shandong 250021, China.
Objective:
To analyse the effect of the reduction of multiple pregnancy through transvaginal ultrasonic monitoring on the pregnancy outcome.
Methods:
Eighty-four cases were divided into two groups according to whether they had vaginal hemorrhage before operation. And the pregnancy outcomes were analyzed.
Results:
The abortion rate and preterm birth rate of the vaginal hemorrhage group were higher, and the difference was statistically significant.
Conclusions:
The reduction of multiple pregnancy through transvaginal ultrasonic monitoring is a safe operative method. But it is only a remedial treatment for multiple pregnancy, and how to prevent multiple pregnancy is of more practical value.

