Background. Ovarian cancer is a very important pathology of the female reproductive system and tends to increase in incidence and mortality rates around the world. Despite the fact that ovarian cancer prevalence is lower than that of breast and cervical cancer, its mortality rate is three times higher. Aim. To analyze the incidence of ovarian cancer in the female population of Ukraine and the Sumy region in 2014–2018. Methods. Data from the National Cancer Register of Ukraine were used for this

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... work. A statistical analysis of the incidence rates of ovarian cancer in the population of Ukraine and Sumy region was carried out. Results. The highest incidence of ovarian cancer in the Sumy region was detected in 2018 (12.5 cases per 100,000 women), and the lowest - in 2017 (10.4 cases per 100,000 women). This pathology occurs most often in women 60-79 years old. 91% of the tumors were epithelial-stromal tumors, of which 75% were serous ovarian adenocarcinomas. Ovarian cancer in most cases was diagnosed at the third stage of the disease (47% of cases), which indicates a low level of early diagnosis of this tumor. Conclusion. In the Sumy region, a high incidence rate of ovarian cancer was revealed, which exceeds the national one and has a significant age dependence. Serous ovarian adenocarcinoma is the most common type of ovarian cancer. This pathology is diagnosed mainly at the 3rd stage.