The aim of this study was to determine the effect of mobile application training on patient outcomes (preoperative anxiety, surgical fear, postoperative pain, hemodynamic parameters, satisfaction level and length of hospital stay) in patients undergoing transurethral prostate resection surgery. It was planned as a prospective, two-arm (1:1), randomized controlled clinical trial. The study will be conducted with 68 patients in the urology clinic of a vir university hospital. Patients will be randomly assigned to the control group and the mobile application training group. Patients in the mobile application group will be trained with the mobile application, while patients in the control group will only receive routine care in the clinic. Patients assigned to the mobile application group will be introduced to the education to be given with the mobile application and the application will be downloaded to their phones/tablets. Data will be collected with the Introductory Information Form, Visual Comparison Scale, State Anxiety Scale, Hemodynamic Parameters Monitoring Form, Surgical Fear Scale and Discharge Education Satisfaction Scale. When the patient is admitted to the clinic, Introductory Information Form, State Anxiety Scale, and Surgical Fear Scale will be applied to the patients in the mobile intervention and control groups before surgical intervention, and Hemodynamic Parameters Monitoring Form will be completed. After the surgical intervention, Visual Comparison Scale and Discharge Education Satisfaction Scale will be applied to all patients and Hemodynamic Parameters Monitoring Form will be completed. The data will be analyzed in a computer environment.