IVF does not increase a woman's risk of breast, ovarian or womb cancer, research suggests today.
Previous studies imply fertility treatment raises women's risk of such diseases due to the high levels of hormones they are exposed to.
Yet scientists from University College London discovered women are only more likely to develop such conditions after IVF if they have other risk factors for them, such as a family history of cancer.
Since the first 'test-tube baby' was born in July 1978, up to five million infants have been born by IVF worldwide.
In the UK and US, around one in eight women will develop breast cancer at some point in their lives. Womb cancer is the fourth most common form of the disease.
IVF does not increase women's risk of breast, ovarian or womb cancer, study suggests (stock)
Women who consume sugary drinks while having IVF cut their chances of conceiving, research suggested in October 2017.
Drinking more than one sugary beverage a day reduces a woman's chance of having a live birth after IVF by 16 per cent, a Harvard University study found.
Having just one sugary drink a day lowers the chance of successful IVF by 12 per cent, the research adds.
Sugary drinks also reduce the number and maturity of a woman's ovarian cells, as well as lowering their amount of high-quality embryos, the study found.
Previous research suggests sugar stimulates the release of stress hormones that affect the health of the reproductive system.
Eggs and embryos may also fail to thrive in high blood glucose environments.
The researchers analysed 340 women undergoing IVF between 2014 and 2016.
The study's participants were investigated during the second stage of IVF treatment, known as ovarian stimulation, when the goal is to