Breast cancer screening is the medical screening of asymptomatic, apparently healthy women for breast cancer in an attempt to achieve an earlier diagnosis. The assumption is that early detection will improve outcomes. A number of screening tests have been employed, including clinical and self breast exams, mammography, genetic screening, ultrasound, and magnetic resonance imaging. A clinical or self breast exam involves feeling the breast for lumps or other abnormalities. Medical evidence, however, does not support its use in women with a typical risk for breast cancer. The use of mammography in universal screening for breast cancer is controversial as it may not reduce all-cause mortality and for causing harms through unnecessary treatments and medical procedures. Many national organizations recommend it for older women. Several tools are available to help target breast cancer screening to older women with longer life expectancies. Similar imaging studies can be performed with magnetic resonance imaging but evidence is lacking.

In the present book, fifteen typical literatures about screening of breast cancer published on international authoritative journals were selected to introduce the worldwide newest progress, which contains reviews or original researches on medical science, breast cancer, cancer screening, medical technique, ect. We hope this book can demonstrate advances in screening of breast cancer as well as give references to the researchers, students and other related people.