Inguinal hernia is a common type of hernia in which a loop of the intestine protrudes directly through a weak area of the abdominal wall in the groin region. This study aimed to assess the effect of nursing guidelines on patients undergoing inguinal hernia repair outcomes. A study was conducted in the general surgical departments at Assiut University Hospital. A consecutive sample of (60) patients was obtained. This sample was divided into study and control group (30) each. Tools utilized for data collection were interview questionnaire sheet and patients' evaluation sheet. Results showed that all the studied patients were male, aged above (30) years, married, manual workers and smokers. The level of patients' knowledge in study and control group preoperative was unsatisfactory (100%) while before discharge level of knowledge for study group was satisfactory (67.7%), also the level of complications decreased in study group than in control group. Conclusion: level of knowledge for patients who take designed nursing guidelines was higher than who didn't take any designed nursing guidelines also level of complications was lower in study group. Recommendation: each patient is given booklet include designed nursing guidelines about inguinal hernia disease and surgery .