Good point! I must have misunderstood that reference! Yes, checked back and it's mixing trans and cis-gender studies, so I'm going to make a correction! Thanks for pointing this out. Doh. Feel stupid.

It says for trans-men: Transgender men on testosterone therapy are carefully monitored. If they're taking a high amount of the hormone—more than the body can use—it can chemically change and affect the uterus in the same way too much estrogen might.

https://www.cedars-sinai.org/blog/gender-affirming-care.html

The additional risks seem low, but I wonder if there's more to it with these leaked emails. Need more research!