I am 23 and have been having pain in my right breast for a couple of months. I had a breast biopsy four years ago on the same breast. This time around I had another ultrasound that came back normal. I do get some tenderness in the left breast but not much.
Could this be a side effect of birth control pills? I started them a few months ago. Or could it be scar tissue?
I just want to know what it is and the doctors are having difficulties diagnosing.