To analyze the scientific evidence about nursing care in the screening of breast cancer in patients seen at the Basic Health Unit. This study deals with a bibliographic review of the integrative literature review method, carried out in the months of October and November 2020. A The search was carried out through the VHL, using the databases (LILACS), (MEDLINE), (BDENF), and through the Google Scholar Portal, adhering to the descriptors: “Nursing care” AND “Cancer of Mama ”AND“ Primary Attention ”, combined with the operator“ B ”. It is relevant that the nurse develops actions to face breast cancer, know the methods of early detection and perform screening actions for the previous identification of breast cancer or precursor lesions in asymp...