If you mess with a woman's uterus that men don't have, it can cause cancer
He speaks the truth. It's absolutely off topic, but true.
Several studies, including Altman et al, (2016) have found that hysterectomies are associated with an increased risk of brain and thyroid cancer.
The exact mechanisms are unclear, but it's thought that the removal of the womb messes with hormone pathways (primarily estradiol metabolism), which increases cancer risk.
https://onlinelibrary.wiley.com/doi/full/10.1002/ijc.30011