I should get another one done soon. The first one was in.2000, and found a cyst. I don't think there was a biopsy. They had called me back for a visit with a doctor to aspirate the cyst. It was really gross. And I was sore for quite awhile after that. The next time I had an ultrasound after the mammogram showed more lumps, and I was told I had "cysts", plural. That was in about 2006 I think. And I haven't had another mammogram since then.