Background & objectives: Breast cancer is the most prevalence cause of death in women. The prevalence is one person per 8 women. Recently was changed in lifestyle of human that increased incidence of breast cancer. Mammography is the one of the diagnosis methods of primary recognizing and secret breast cancer before getting 5 mm size. The aim of this study was determination of demographic characteristics of referred patients for mammography and prevalence of malignant of breast cancer based on aged.

Methods: In this descriptive study all women who are referred to mammography department of the Fatemy Hospital underwent study in 1384. Personal, mammography information and sonography and biopsy information of women were collected by questionnaire. Data were analyzed by descriptive statistics.

Results: The sings of breast cancer malignancy were recognized in 20 of 100 women referred to mammography department. In 12 of 20 individuals were observed breast cancer, that were 2 cases, 6 cases and 4 cases between 30-34 , 35-44 , ≥50 years old, respectively. The marital status was showed the marrying age and the first of pregnancy 10 cases from 12 women were under 20 years old and 2 between 20- 30.

Conclusion: This study was showed the prevalence of breast cancer was in lower ages of women. Ages and first age pregnancy were the risk factors of breast cancer.