Hi I 26 years old and about 2 months ago I found a tiny hard bump in my left breast by my armpit. I made an apt with my dr and she found the lump and sent me to get an ultrasound. When i went to get the ultrasound she told me it was a 8cm lympnode and it was okay. My question is, is a swollen lymphnode for two months normal? Does that signal infection? Should I ask my doctor to have it biopsyed? Anything information helps thanks!