Views of ethnic immigrant women's experiences about mammography screening are important to determine barriers to cancer screening. We explored perceptions and barriers about mammography screening and breast health services among Haitian, Hispanic, Portuguese, and Somali women (n = 51) using semistructured interviews. Providers (n = 19) offered insight into health system barriers. Content analysis was conducted using qualitative data from the 2011 Komen Massachusetts needs assessment. Grounded theory was employed to explore themes and patterns in narratives. Six themes represented knowledge, health care, culture, spirituality, survivorship, and health systems improvement. Results may inform breast health policies that impact ethnic immigrant women in Massachusetts.