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Men taking women’s hormones massively increase risk of breast cancer, study finds

Gender-confused men who take the hormone estrogen to “transition” into a female “identity” are dramatically increasing their risk of breast cancer, according to a recent study by Dutch researchers.

According to the National Breast Cancer Foundation, only one out of every 1,000 men is diagnosed with breast cancer. But the study, published in the British Medical Journal and conducted by researchers at VU University Medical Centre in Amsterdam, found that “trans women” – men – on hormone therapy were more than 46 times more likely to suffer the disease, MedPage Today reports. Gender-confused women taking testosterone to “transition” to men, meanwhile, were nearly 60 times more likely to develop breast cancer.

The study followed adult patients at the VU University Medical Centre’s Amsterdam clinic, which treats over 96 percent of gender-confusion cases in the Netherlands. 2,260 gender-confused men and 1,229 gender-confused women were observed.

“This suggests that hormone treatment alters the risk of breast cancer in transgender people compared with initial risk based on their birth assigned sex,” the researchers stated. While the likelihood dramatically rose, the researchers stressed that the absolute numbers remained small: 18 cases out of 2,260 “trans women,” and four cases out of 1,229 “trans men.” 

Still, they recognized that the study indicated that current cancer screening recommendations are insufficient for the gender-confused.

“Current recommendations suggest that trans women and trans men who have not undergone mastectomy should be biennially screened with mammography from the age of 50 years and if they are using hormone treatment for more than five years,” the researchers said. Mammograms aren’t viable after subcutaneous mastectomies, so they advised that “trans men” conduct self-exams – while warning they had “no evidence for effectiveness.”