So, I live in the US and I'm dating a Dominican guy. He's from Santo Domingo and has been here in the States for a couple of years now. When we were discussing birth control options, he said that he once received an injection to render him sterile for 5 years. I thought this sounded bogus, especially after a Google search yielded no results, but then I spoke to a friend who is married to a Dominican man and he said this thing exists. Anyone heard of this? Is it as shady as it seems?