Objective: This study was conducted to evaluate the educational needs in patients undergone breast surgery. Material and Methods: The data of this descriptive study were collected from 67 patients who underwent breast surgery between June 15, 2018 and August 15, 2018 in two private hospitals on the European side. After obtaining institutional permission and ethics committee approval, data were collected using the “Patient Learning Needs Scale” and “Patient Information Form” prepared by the researcher and analyzed statistically. Results: The mean age of the patients included in the study was 45.04±8.039, and 79.1% was married, 32.8% was college or university graduate, and 82.1% had a balanced income. It was found that 35.8% of the patients had a history of breast disease in their family, 97% had surgical treatment, and 98.5% had been informed before the surgery. It was observed that 82.1% of the patients considered the information given adequate. It was determined that patients were in need of learning more about medications and quality of life (4.76±0.430). No statistically significant relationship was found between the learning needs and the age, marital status, and educational status of the patients. Conclusion: It may be suggested that the trainings for patients who undergone breast surgery should be planned in line with the needs.