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I believe we've already waited 10 years. That's why it's “10+”—the oldest trials are about 10 years old at this point, and the effect is still the same (as far as I've been able to read). More, as usual, at http://en.wikipedia.org/wiki/Reversible_inhibition_of_sperm_... , including critique.

I don't see how it sounds like you'd get a granuloma. It sounds like the sperm are destroyed as they pass through the vas deferens but are still washed out as they normally would be.

Ah, I did not read up apparently. I thought this was essentially gluing the vas shut with a polymer that was reversible. According to the wikipedia entry, they don't know the exact reason it works (what?!). Very interesting.. I had overlooked that.

Just schedule it along with your passport renewal! If you are in the US~

It doesn't in langur monkeys: http://www.ncbi.nlm.nih.gov/pubmed/12826690