Breast cancer is the second most common cancer after skin cancer and the second leading cause of women's death after lung cancer in the world. which is discussed in this article and the impact of this cancer especially on the health of women who have a central role in the family and society, adopting effective and efficient diagnostic methods in the early stages is very important and should be the main component of the strategy Those whose aim is to improve women's health and reduce the incidence and mortality of breast cancer should be considered. In the meantime, training and raising women's awareness and recommending different screening methods for breast cancer in the early stages, according to the available guidelines, play an important role as preventive measures. In this review article, an attempt has been made to examine the prevalence, causes, pathology, and diagnosis methods according to the latest studies.