Inclusion Criteria:  Being 18 years or older Having undergone abdominal surgery Volunteering to participate in the research Patients without risk of preoperative malnutrition  Exclusion Criteria:  Those who test positive for known Povidone Iodine allergy Those who use steroids and immunosuppressive drugs Those who used antibiotics due to infection in the last two weeks (prophylactic antibiotic use is not included in this item since all patients were given antibiotics for prophylaxis on the first day before surgery) Those diagnosed with Diabetes Mellitus (DM) Obese (BMI>30) patients