Cervix cancer is the second most frequently found cancer in women, after breast cancer and represent one of the biggest problems of modern medicine. The aim of treatment is to determine the frequency of certain premalignant and malignant changes in cervix and the method of its operative treatment. By a retrospective method, 360 women have been operated due to the changes in cervix from 1999-2008 at Obstetrics &Gynecology Clinic of Clinical Center of Montenegro. Out of this number the total of 297 women with premalignant lesions of cervix was found and 63 women at an operable stage of cancer. With premalignant cervix changes the most frequent indication for operation was CIN III - 24.57% of patients. Cervix conization -80.13% is most frequently used as an operable intervention with premalignant changes in cervix. The groups of 40-49 years of age and 50-59 years of age are the ages of patients with most frequently conization done. The most frequent indication to operate malignant cervix was Ca I b. Wertheim-Meigs radical hysterectomy was performed with all patients with operable malignant changes. With an early identification, an adequate evaluation, the treatment, constant and cautious monitoring, almost any cervical intraepithelial neoplasia can be cured. Without the treatment, 30-50% of cervical dysplasia can advance into and invasive cervix cancer.