Breast cancer is a leading cause of morbidity and mortality .Despite advances and improvements in diagnosis and treatment, the mortality rate has not changed significantly in the last several decades. For that reason we think this topic is important and we made a review of the bibliography on it. In this paper we give an overview about the history of breast cancer, the initial assessment, the high and low risk factors, the indication of mammography and also about its most important sings and symptoms, the prognosis and other variables. We hope this little travel throughout that up-to-date material on breast cancer will be very useful in our future development as professionals as well as to contribute - by this fresh information with the prevention of that malignant disease.