Hi Jax, that is very crappy news to receive. I had 2 biopsy's done under mammogram on the same breast but in different locations so I was literally in the mammo machine for about 40 minutes. Most painful part was them getting me in the right position and I'm not going to lie but it did hurt but it was bearable. They get you in position take a scan and do measurements, inject the local anaeschetic and then do the biopsy. The second biopsy was probably a bit easier as I was still a little bit numb. Also I was lying down which is way better than the standing version. I had already had a biopsy under ultra sound the same day so needless to say my poor boob was very bruised and sore for a few days.