This randomized controlled study aimed to evaluate the effect of preoperative education on anxiety levels in patients undergoing abdominal surgery at a training hospital in Istanbul. The study population included patients admitted between January and June 2024. After power analysis, patients were divided into experimental (n=40) and control (n=41) groups. The experimental group received preoperative information, while the control group received standard care. Anxiety levels were assessed using the State-Trait Anxiety Inventory (STAI). Data were analyzed with SPSS, using tests such as the Mann-Whitney U and Wilcoxon Sign tests.

As a result of this study, the anxiety levels of patients who received preoperative information training in the prevention or reduction of anxiety were found to be lower than patients who received routine care. The lower score indicated that they experienced less anxiety or were able to manage their anxiety in the experimental group.

Inclusion Criteria:

• Admission to the general surgery clinic for abdominal surgery in category A-B-C
• must be over the age of 18
• To be literate- to be a writer
• Being conscious
• Who does not have a psychiatric disorder

Exclusion Criteria:

• Exit the research during the study,
• Group D and E abdominal surgery has been performed
• don't be under the age of 18
• Unconscious patient,
• Who has a psychiatric disorder
• Patients with communication disabilities or who cannot speak Turkish were determined as patients.