IVF is a treatment where eggs & sperms are fertilized outside the uterus in laboratory & the embryos which are formed are transferred inside the uterus of female. To increase the probability of successful pregnancy, the practice is to transfer 2 or more than 2 embryos, resulting in multiple pregnancy. Chances of twins in normal pregnancy is ≈ 6% while with IVF reaches up to 25%.
What are different types of multiple pregnancy?
How to identify multiple pregnancy?