Sounds like a transperneal template biopsy, which is what I had after my first biopsy found nearly nothing.
I just looked back in my diary, and the whole thing was remarkably painless - I didn't need any of the painkillers they offered me. Bruising (painless) grew in to scrotum in a couple of days, but started clearing a couple of days after that and I did 35 mins on my exercise bike 4 days after the op.