Background- Any bleeding that deviates from the regular menstrual cycle in terms of frequency, duration, or volume of blood flow is classified as abnormal uterine bleeding (AUB). Methods: During the course of two years, 268 patients with a clinical diagnosis of AUB were enrolled in this study. Under light microscopy, a retrospective investigation of dilatation and curettage (D&C) tissue slides stained with haematoxylin and eosin (H&E) was conducted. Result- This study covered 268 patients in total. The patients' average age was 42.0 ± 6.3 years. Women with low parity had the highest incidence of AUB (39.92%). Menorrhagia (40.29%) and metrorrhagia (18.28%) were the most prevalent clinical symptoms in AUB cases. It was discovered that proliferative phase endometrial (32.46%) was common in this investigation. Conclusion: In every case of atypical uterine bleeding, a full clinical history, a detailed physical examination, and a histological analysis of the endometrium should be conducted as soon as possible.