They can be early on, sperm can also be extracted for IVF but for the most part it’s not considered a reversible procedure hence why already having kids is usually a requirement for getting one.

There is no guarantee that a reversal will be successful and the success rate drops sharply with time.

I hope for your sake you didn’t get one thinking that it can be reversed.

Thanks for the advice and genuine concern. I stand corrected, mine was a theoretical knowledge and no I did not take any decision based upon that (incomplete) knowledge.

I got told that there was a 60% chance that a reversal would be successful. They didn't say anything about it being less likely with time.

So yes... maybe.