About the 20% of women who needed fertility treatment, such as extracorporealto conceive their first child, they are likely to stay pregnant with natural way in the future, according to research published in the journal “Human Reproduction”.

The researchers, led by University College London, analyzed data from 11 studies of a total of more than 5,000 women worldwide between 1980 and 2021 and found that at least one in five women conceived naturally having had a baby through fertility treatment, mainly within three years.

This rate remained unchanged even when different types and outcomes of fertility treatment were taken into account along with the duration of follow-up.

THE extracorporeal fertilization was first used in 1978 and today more than ten million babies worldwide have been born using this treatment, representing 1-6% of all babies born annually in the developed world by 2020.

In order to more accurately track the data and analyze the factors that make pregnancy more likely naturally after having a baby with fertility treatment, researchers are calling for the creation of linked national datasets.