In comparison to naturally conceived children, the children conceived using a certain In Vitro Fertilization technique has been found to be taller. This is yet another side effect of IVF, which has been lately discovered by the scientists.

However, this was evident only in cases which used fresh embryos during the IVF process. This height advantage was not binding on children which were produced using frozen embryos. This New Zealand-based study has hence given way to the fertility problems for 30 years now and has shown how these can have an affect on the resulting children.

Dr Mark Green, a research fellow at New Zealand's Liggins Institute said "We don't know the reasons for the height difference. But can I suggest that it may have something to do with the hormones that are given to the mother to stimulate the ovary in fresh embryo transfer”.

This difference in height is likely to happen in case of fresh embryos as these are of better quality in comparison to the frozen ones.

This study involving roughly 200 children found out those children born as a result of frozen embryos were of the same height as those who had a natural birth. All children from fresh embryos, particularly girls were found to be
2.6cm taller than their peers.