Study: In vitro fertilization does not increase risk of breast cancer
A new study has found that in-vitro fertilization (IVF) does not increase a woman’s risk of contracting breast or endometrial cancer.
According to Reuters, researchers at the National Cancer Institute (NCI) examined the medical records of 67,608 Israeli women who received IVF treatments between 1994 and 2011 and compared them with 19,795 women who never underwent the treatments, which can involve puncturing the ovary to collect eggs, or stimulating ovulation with medication.
The study, published in the journal Fertility and Sterility, found that after running the women’s records through a national cancer registry, just over 1,500 of them had been diagnosed with cancer as of mid-2011, but that IVF treatments were not a significant factor in their chances of contracting the disease.
“The findings were fairly reassuring,” said Louise Brinton, the study’s lead author. “Nothing was significantly elevated.”
However, Brinton said, her team did find a woman’s chances of contracting ovarian cancer increased slightly the more rounds of IVF treatment she received; that scenario occurred in 45 cases out of the entire study.
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