Introduction: Hyperplastic endometrial processes a common pathology in women of different ages. They are the cause of infertility in women of reproductive age, often malignant during perimenopause and postmenopause, characterized by a high recurrence rate.

Aim: To collect and analyze data on the incidence of endometrial hyperplastic processes in the Sumy region.

Materials and methods: The study was performed on the basis of the Sumy Regional Pathological Bureau, the Department of Pathological Anatomy of the Sumy State University Medical Institute, the Sumy Regional Clinical Oncology Dispensary, the Clinical Maternity Hospital of the Blessed Virgin Mary for the period 2011-2020. The analysis was performed of outpatient charts and medical case histories of women with hyperplastic endometrial processes.

Results: It was found that the largest number of cases of endometrial hyperplastic processes was in 2016, and the smallest ones – in 2020. Hyperplasia without atypia was more common in 2016, atypical hyperplasia – in 2017 are among them. The lowest number of endometrial hyperplasia without atypia was observed in 2020, and atypical endometrial hyperplasia – in 2011. The highest number of endometrial hyperplasia without atypia was observed in women aged 45-55 years old, the lowest number – in women aged 66 years and older. The highest number of atypical endometrial hyperplasia was also observed in women aged 45-55 years old, and the lowest ones – in women under 30 years old. Endometrial polyps were more common in 2019, less common – in 2012. The largest number of glandular polyps of the endometrium was detected in 2018, and the smallest ones – in 2012. Glandular-fibrous polyps were more common in 2019, less common – in 2011. The number of fibro-glandularcystic polyps increased in 2019, and in 2011 and 2016 were not detected at all. The largest number of glandular polyps of the endometrium was found in women aged 31-44 years old, the smallest number – in women over 66 years old. Glandular-fibrous endometrial polyps were more common in women aged 45-55 years old, less common in women under 30 years old. The largest number of fibro-glandular-cystic polyps of the endometrium was observed in women of older age groups – 66 years and older; the smallest number of these endometrial polyps – in women under 30 years old.

Conclusions: There is a tendency to increase the incidence of endometrial hyperplastic processes in the Sumy region for the period 2010-2020. There is a certain interaction between the frequency of this pathology in different ages. The reduction in morbidity in 2020 is due to quarantine measures in connection with the COVID-19 pandemic, and, as a result, a reduced number of diagnosed cases of endometrial hyperplastic processes.