 Many cancer centers in the United States provide psychosocial support services for the over 200,000 women newly diagnosed with breast cancer each year. There are few supportive care services however that target the coping of their adolescent daughters with the stress of their mothers breast cancer. Before developing these services we need to understand more about which coping strategies can mediate the stress of mothers breast cancer and be included in any interventions. With the increased risk that these daughters face of acquiring breast cancer, developing fear about health screening, and potentially facing life-long depression, it is imperative to understand more about the coping strategies and factors that can mediate the stressfulness of this event. This cross-sectional, correlational study will target 90 adolescent daughters and their mothers with breast cancer recruited through the New York University Medical Cancer Center NYUMC and Bellevue HospitalNew York City Health and Hospitals Corporation NYCHHC cancer clinics. A contribution of this study to the research to date includes an active outreach to include the minority population. Data collection will include data sheets for mother and daughter demographic information and history, and instruments that target adolescent daughters, the different coping strategies they use, and their level of adjustment or distress with the maternal disease within the first year following diagnosis. Ultimately, the knowledge gained from this study will lead to the development of interventions that target coping and promote adjustment in this vulnerable group. 