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Abnormal uterine bleeding is a frequent condition that can negatively affect the physical, emotional, sexual and professional aspects of women, reducing their quality of life and can lead to anemia. It is necessary to be aware of when patients have severe and acute bleeding, they need urgent treatment, with volumetric replacement and hemostatic substances. Often, situations arise that require prolonged treatment and others in which surgical treatment is necessary. Called endometrial ablation whose surgical technique is capable of destroying or resecting the endometrium, indicated in cases of abnormal uterine bleeding without improving with clinical treatment or with contraindication to it. It is an alternative to hysterectomy in the treatment of benign pathologies, being less invasive and less aggressive, with less morbidity and mortality and with considerable cost reduction. Objective: This study aims to analyze the main indications and procedures used for the study of varieties of pathologies diagnosed by hysteroscopy performed in service between the years 2019 and 2020. Methodology : This is a bibliographic, qualitative and descriptive review that will be carried out through books, reading and analysis of national and international scientific articles, course completion works through consultations in the electronic databases, Pubmed, Virtual Health Library, including electronic journals specialized in the area. For this, this research was divided into two moments that refer: the bibliographic research and case study, using the data collection technique through the results obtained from the patients' exams. Results: The results attested that the presence of endometrial polyps, followed by the atrophic endometrium, integrated the most frequent histological and hysteroscopic diagnoses. Polyps and functional endometrium prevailed in younger patients, while in older women, polyps and endometrial atrophy predominated, both through hysteroscopy and endometrial histology. I. INTRODUCTIONCurrently, several studies have proven that the causes of vaginal bleeding from the uterus are diverse , where it can occur at any age, resulting from problems related to anovulation, benign or malignant anatomical lesions, pregnancy or hormonal disorders. In order to diagnose the cause of bleeding, it is necessary to perform tests such as endometrial biopsy, uterine curettage, transvaginal or abdominal ultrasound and hysteroscopy. Abnormal uterine bleeding (SUA) is César Patez Figueiredo et al.