Normally a vasectomy is a very simple operation. After being shaved..there are only 2 very minor incisions ( under anethetic) in the scrotum where the tubes are pulled thru, cut, ends closed off and tucked back in. When I went, it was like an assembly line. There were 3 or 4 other guys having surgery. I felt no pain, just a little tugging. People should not be afraid of this operation from a qualified surgeon. (Of course with any operation, there is chance of infection and allergy to anethetic.)
There is a slight dragging sensation for about 3 days, and you got to out up with the itching as the hair grows back it. Of course, you need to have several ejaculations to remove any live sperm in your system. It would have gone a lot faster if I had spank the monkeyd several times.
I would rather do this than have a cavity repaired. Sorry, you had trouble.