[FooBarBizBazz]

> Saying "hormones altered" shows your bias

What is "Shows your bias" supposed to mean here? Look: There are women who don't like hormonal birth control. They feel bloated &etc. Trust me on this.

> IUD exist without any hormones

Yes, and theoretically and by the numbers it's effective, but did you know that it hurts to put one in? It's actually not a small ask. If a woman chooses it herself without prompting, fine. And in the context of a really long term relationship where you can "have a conversation", maybe. But it's not a little thing. In fact, it hurts enough that it can create a fair amount of resentment.

> you don't think blasting your balls with heat "alters" your hormones?

Actually no, that's not the mechanism at work here.

> Use condoms.

Well, that's reasonable advice, though you still do want to use multiple methods.

[dingdongbing]

We have tested methods of birth control for women. We have untested and/or not as effective and/or not as safe methods for men. These methods also alter your hormones, the testicles are where the male hormones are produced. (We also have condoms guys)

The "important problem" should be to have _even safer_ birth control, not male birth control.