Why Don’t We Have Annual Ultrasounds...

Why don't doctors ask for an annual ultrasound instead of a mammogram? A mammogram is painful and uses radiation - an ultrasound is comfortable and uses sound waves. Why do we still need mammograms? Learn more about mammograms and ultrasounds for breast cancer screening here.
Source: About.com Breast Cancer - Category: Cancer & Oncology Authors: Tags: health Source Type: news