Introduction: This study was carried out with the aim of determining the effect of information given in a leaflet to women who are about have a mammography on levels of anxiety before the procedure and pain levels after the procedure Materials and Methods: This study consisted of 63 women. The data was state anxiety scale and verbal category scale before the experimental group went to the mammography unit, they were given information in a written leaflet, the control group was not. Before the procedures in the breast clinic and mammography unit anxiety was measured twice and pain levels were measured after the procedure in both group. Results: There was no difference (p>0.05) between the anxiety levels of the experimental (46.19±11.88) and control (46.41±12.73) groups in the breast clinic before their mammography s (p>0.05), however in mammography unit the experimental group (35.35±10.30) was found (p= 0.00) to have lower anxiety levels than the control group (51.41±10.59). After the mammography in terms of pain, the difference between the groups was not found (p>0.05). Discussion: It was determined that giving information using written leaflets to women who will have a mammography decreased anxiety levels, however, it did not affect pain levels.