Background: Globally, caesarean sections (CS) are on the rise. It is among the most frequently performed major obstetric surgeries. This study aimed to evaluate the outcomes of closure versus non-closure of the visceral and parietal peritoneum. Methods: This randomized blinded controlled clinical trial was carried out on 400 consenting women undergoing CS. All pregnant women were randomized into one of the four equal groups: Group 1: Closure of parietal peritoneum only, group 2: Closure of visceral and parietal peritoneums, group 3: No closure of peritoneums, and group 4: Closure of the visceral peritoneum only Results: Surgery duration was considerably lower in Group 3 which was 25 min in average while group 2 showed the longer Duration of Surgery 34 min in average (p < 0.001). There was a considerably significant difference between 4 groups according to post-operative patients' satisfaction VAS (p=0.04). and Analgesics used (Pethidine 10mg/ ml) as the lowest amount was in group 3 (1.83 ml) and the highest amount was in group 2 (2.31 ml) (p < 0.0001). Conclusion: For visceral and parietal peritoneum in CS, the non-closure approach is recommended due to its much shorter operating time and lower postoperative pain score. As a result of these advantages, it may be preferred as a method of treating CS patients.