Hamed Arvanagnejad - Undergraduate Nursing student, student research committee, Nursing faculty, Aja university of medical sciences
Fatemeh Khosravi - Undergraduate Nursing student, student research committee, Nursing faculty, Aja university of medical sciences

Back ground: Breast cancer is the most common cancer and the second leading cause of deathin Irainian women. It’s increasing prevalence in developing countries such as Iran has causedhigh costs for the country’s health system. As a result recognizing the features and prevalenceof common diseases such as breast cancer helps physicians to diagnose and treat the diseasesmore accurately and more efficiently. The aim of this study is to investigate the epidemiologyof breast cancer and it’s risk factors.Material and Methods: The study was conducted as a review by searching the Pubmed,Google scholar, Science direct and Sid databases whit the key words cancer, breast cancer,risk factors, epidemiology. In this way persian articals were collected and reviewed until 2020.Results: The incidence rate of breast cancer in Iran is lower than the other developed countriesbut it occurs at a younger age. The most common age for malignant cancerous masses to appearis between the age of 40 and 50 and before menopause with the common sign of vague pain inthe mammary ducts region and it’s most common benign masses are expected to appear in 20sand 30s . Obesty, Hyperlipidemia and taking contraceptive pills are the most common riskfactors of breast cancer.Conclusions: Due to the increasing prevalence of breast cancer in Iran, extensive programs areneeded in the field of screening , training and encouraging people at risk for monthly selfexaminations,annual mammography and examination by a physician from an early ageespecially in less developed cities to prevent irreparable damages to people and the additionalcosts caused by them and the country’s health system with timely diagnosis and treatment.

Epidemiology, breast cancer, cancer, risk factors