Comparative Study of Abnormal Uterine Bleeding with History of Cesarean Section and Vaginal Delivery in Women Referring to Gynecology Clinic of Ali-Ebn-Abitaleb Hospital in Zahedan

The aim of this study was to compare the abnormal uterine bleeding with a history of cesarean section and normal delivery in women referred to the gynecology and obstetrics clinic of Ali Ibn Abitaleb Hospital in Zahedan, Iran in 2020-21.

Patients were divided into two groups of 100 patients. For each patient, information including demographic characteristics and evaluation of the causes of abnormal uterine bleeding in patients based on paraclinical procedures, BMI calculation, vaginitis and Pelvic inflammatory disorder (PID) were obtained.

The mean age of patients in the normal delivery group was 30.14 ± 6.26 years and in the cesarean section patients was 29.13 ± 6.70 years. There was no statistically significant difference between the two groups in terms of age. There was a statistically significant difference between the two groups in terms of type between menorrhagia (p value = 0.047) and in comparison between the two groups in terms of bleeding causes, anatomical cause (p value = 0.02) and neoplasia (p value = 0.04).

The present findings showed that the incidence of menorrhagia was higher in cesarean delivery and the incidence of abnormal uterine bleeding (AUB) in cesarean delivery may occur after delivery with a shorter time interval than the delivery time. The most important cause of abnormal bleeding in both groups was infection, but with regards to anatomical causes, the most important cause was fibroids in both groups.