Hallo, all of you. Something horrible happened to me. My left nipple was painful and tender for 2 days, I squeezed it and there was some pus and then some blood. It looked as I had squeezes a pimple. I'm scared. The same thing happened to me 3 years ago with my right nipple and it went away for some days. What's wrong? I check my nipples almost every day for discharge, could it be infection or cancer?