Background:High rate of cesarean section is accompanied by higher rate of complications. Niche, which is a uterine wall defect is one of these recognized complications. Our study's aim was to find out how common abnormal uterine bleeding is among women who have had caesarean sections. Subjects and methods: 195 women who had at least one prior cesarean section and complaining of vaginal spotting after the menstrual period admitted at the cytogenetics endoscopic unit, Zagazig University Hospitals.Office hysteroscopy was used to check for the presence of a caesarean section niche in the patients. Results: By hysteroscopy, there was a statistically significant difference between patients with and without niche regarding age (P value, 0.001), number of previous CSs (P value < 0.001), hypertension (P value <0.001), post-menstrual spotting (P value, 0.002), dysmenorrhea (P value < 0.161) and chronic pelvic pain (P value, 0.547). Conclusion: There is an association between the number of previous CS and development of a niche.CS niche is linked to dysmenorrhea and chronic pelvic pain.