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Does IVF increase chances of a multiple pregnancy?

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?

• Identical twins: look alike & are of the same sex.
• Fraternal twins: do not look alike & does not necessarily are of same sex.
• Triplets & higher order e.g., quadruplets etc.
Risk associated with multiple pregnancies:


• To develop diabetes.
• To develop hypertension.
• Heavy bleeding due to placental abruption.
• Preterm delivery.


• Fetal loss.
• Intrauterine growth restriction (IUGR).
• Due to preterm delivery increased cost of NICU admission & stay.
• Developmental delay due to preterm delivery in extremely low birth weight babies.

How to identify multiple pregnancy?

• Ultrasound examination.
• Doppler heartbeat count.
• High levels of HCG.
• Increased morning sickness.
• Chronic fatigue.
• Increase in average pregnancy weight.