Breast cancer is the leading cause of cancer death and morbidity among women worldwide. In Germany an estimated 46,000 women are diagnosed with breast cancer every year, and 18,000 die of the disease. So far, limited information is available on possible epidemiological and clinical differences between women of German origin and other ethnic or national groups in Germany. Such differences between migrants and the general population could hint to underlying causes of disease and to differential access to medical care. In this paper we present epidemiological information on breast cancer among Turkish women in Germany and describe a future research agenda addressing these questions.