{Reference Type}: Systematic Review {Title}: Mental Health Implications of Family Separation Associated with Migration Policies in the United States: A Systematic Review. {Author}: Naseh M;Zeng Y;Ahn E;Cohen F;Rfat M; {Journal}: Soc Sci Med {Volume}: 352 {Issue}: 0 {Year}: 2024 Jul 25 {Factor}: 5.379 {DOI}: 10.1016/j.socscimed.2024.116995 {Abstract}: The practice of family separation as a mechanism of oppression has a deep-rooted history in the U.S., manifesting in diverse contexts, including punitive migration policies. This systematic review aimed to provide a rigorous and updated synthesis of the research on family separation as a result of migration policies and its impacts on immigrants' mental health while making a distinction between forced family separation, family separation by constrained choices, and living with the fear of family separation. We systematically searched four bibliographic databases using keywords related to family separation, migration, transnational families, and mental health for peer-reviewed studies published in English on or before January 1st, 2022. Results of the review indicate that family separation or fear of it may result in depression, anxiety, behavioral and emotional issues, sleep disturbances, and stress or distress in affected children. Similarly, impacted parents or caregivers might experience stress or distress, depression, anxiety, and sleep disturbances. Findings call for migration policy changes prioritizing family unity and comprehensive mental health interventions to respond to the pervasive consequences of family separation or fear thereof among immigrants in the U.S.