The world of medical diagnostic testing for breast cancer changes as new research and studies unfold. Currently, the primary tests used in the diagnosis of breast cancer include the imaging techniques of mammography (digital or film), MRI, ultrasound, and several breast biopsy methods. Traditional mammography is still the most widely used first choice for diagnostic testing; however it brings with it fear of uncertainty as well as discomfort. The drawbacks often cause women to postpone regular yearly mammograms, and that, in turn, contributes to delayed detection of breast cancer. The goal should always be early detection of breast cancer, because studies have shown that survival increases when breast cancer is detected in its early stages.