Endometrial polyps are hyperplastic overgrowths of the endometrium that contain both glands and stroma. Myoma uteri is the most common benign tumor of the female pelvis and uterus. HOXA10, which is involved during the organogenesis of the uterus in the embryonic period. The aim of this study was to compare the expression levels of infertility-related genes in endometrial tissue obtained from patients with endometrial polyp and myoma uteri and from healthy controls. A total of 36 patients, including 15 women with endometrial polyp and 21 women with myoma uteri, and 23 healthy controls were enrolled in the study. All patients were evaluated using transvaginal ultrasonography. Endometrial tissue samples were collected from the patient and control groups between the 19th and 21st days of the menstrual cycle. Expression levels of the receptivity markers PROK1, PROKR1, PROK2, PROKR2 and HOXA10 genes were determined by RT- PCR. When the patients diagnosed with endometrial polyp and the healthy controls were compared, it was observed statistically significantly that the expression of PROKR1 increased in endometrium tissue of patients with endometrial polyp (p <
0.05). In patients diagnosed with myoma uteri, gene expression levels of endometrial PROKR1 was statistically significant increased and gene expression levels of PROK1, PROKR2, HOXA10 were found to be statistically significantly decreased compared to the controls (p <
0.05). Changes in the endometrial expression of the HOXA10 and prokineticin gene family in patients with myoma uteri and endometrial polyps may explain certain aspects of infertility in these patients.