We aim, of course, to keep the strain on the patient and the impacts on health as low as possible. Yet please be aware of the remote possibility that just like with any other medical intervention, too, complications may arise.
We cannot exclude the complications that are associated with every pregnancy, such as miscarriage, premature labor and others.
In this respect there is no difference between a pregnancy after IVF and a “normally conceived” pregnancy. However, there’s an increased likelihood of having a multiple pregnancy
. On average a transfer of two or more embryos results in twins in 20 % of all cases, the chance to be expecting triplets is 2 % if three embryos have been returned to the mother’s womb.
In theory, there also is the risk of an ectopic or tubal pregnancy
after embryo transfer. The risk of tubal pregnancy amounts to about 2 % when pregnancy has occurred naturally. If pregnancy has occurred after embryo transfer there will be a slightly increased risk of 3 % provided that parts of the fallopian tubes are still present.
The characteristic complication of hormonal treatment is referred to as „ Ovarian Hyper-Stimulation Syndrome or OHSS”. This condition involves grossly enlarged ovaries with cyst formation, the feeling of pressure in the lower abdomen and, in rare cases, fluid build-up in the abdomen or even the lungs. On rare occasions and particularly if pregnancy occurs during OHSS, these symptoms may intensify, requiring short-term hospitalization. The Ovarian-Hyperstimulation-Syndrome will vanish on its own accord.