Over the last month I have had my regular mammogram, diagnostic mammogram and ultrasound of my right breast. The conclusion, possible dense breast tissue. I am confused and no one seems to want to answer my questions. First, I am 50 years old and have had scheduled mammograms since I was 38 yrs. This is the first time I have ever shown anything "abnormal". They are saying things like breast tissue folding over on itself and dense breast tissue. Today I was sent for a stereotatic breast biopsy only to not have it done because they couldn't find the suspected area on the x-ray. They proceeded to do yet another ultrasound and found the spot in question with the radiologist stating that it looked like normal tissue but still wants me to come back in 4 months for a re-evaluation. I still have no answers as to what it actually is. Why would dense tissue show up in just one breast and not the other? Will I have to have a "Battery" of tests every year and quiet frankly felt embarrassed that I was to have a biopsy but then they couldn't find anything!?! Yes, I know that is good news but still "What is it?" My father died of breast cancer so this is a bit close to home for me. All the doctors seem to think its nothing but no one wants to say for sure what it is and guarantee me that it isn't something to worry about. I find nothing on the internet to educate me as to dense breast tissue other than it makes it difficult to see behind and that it could possibly contribute to the formation of cancer. Can someone please shed some light on this?