First Maternity Hospital in Ulaanbaatar has provided 1890 women, 2508 women and 3728 women in 2012, 2013 and 2014, respectively, for diseases in women. Uterine myoma, ovarian cysts, dysfunctional uterine bleeding, ovariandysfunction and endometriosis are commonly among women. These need to be diagnosed at early stages of the diseases. Endometrial carcinoma is detected in 5% of women under 40 years of age with over amount of hormone estrogen on a base of endometrial hyperplasia.Women with endometrial hyperplasia have 5% possibility to have endometriosis, endometroidcysts, ovarian cancer or uterine myoma and 0.5% possibility to have higher complication of disease. Therefore, we aimed to introduce the practical treatment with cytological analysis as a medical treatment and diagnosis method. The purpose of the research is to highlight the diseases mostly occurring in women, determine cytological changes and differences and improve the differential diagnosis.The research work has been carried out based on reports of cytological analyses undertaken by the National Centre of Pathology for 1310 patients, who were all of patients treated at the Inpatient Care Department in FMH in 2014. This study included in the cytological analyses at the National Centre of Pathology, by using special questinnaries and did retrospective study. 67.7% /888/, 27.8% /365/ and 4.3% /57/ of the above mentioned women were tested with cytological analyses due to surgical diseases, endocrinology diseases and inflammatory diseases, respectively. The average age is 39±58. The uterine myoma, the ovarian cyst and dysfunctional uterine bleeding have been more commonly occurred among the 35 diseases in women as 38.9% /510/, 15.7% /206/ and 16.7%/219/ of the women, respectively. For endometriosis cases, the ovarian endometriosis occurred with 3.7%, the fallopian tube endometriosis occurred 2.4%, the adenomyosis occurred 4.7% and the combined endometriosis occurred 0.5%.Based on the reports of cytological analyses on endometrial hyperplasia, the details show that the simple hyperplasia is 52.4% /178/ and the complex hyperplasia is 47.6% /162/.Compared with women without the HPV, a cervical intraepithelial neoplasia occurs to women with the HPVmore than 20 times. /p<0.001, OR=20.81/. It is statistically important that 2nd stage of adenomyosiscauses atypic cellular changes for 3 times. /p<0.001, OR=3.09/. In women, the uterine myoma, dysfunctional uterine bleeding and ovarian cyst disorders are most common. Average age of women with disease in women is 39.58.Compared with women without the HPV, a cellular change occurs to women with the HPV more than 20 times. /p<0.001, OR=20.81/.The 2nd stage of adenomyosis causes atypic cellular changes for 3 times. /p<0.001, OR=3.09/