Social and structural determinants of health include historical, social, political, and economic forces, many of which are rooted in racism and inequality, that shape the relationship between environmental conditions and individual health. Unmet social needs can increase the risk of many conditions treated by obstetrician-gynecologists (ob-gyns), including, but not limited to, preterm birth, unintended pregnancy, infertility, cervical cancer, breast cancer, and maternal mortality. An individual health care professional's biases (whether overt or unconscious) affect delivery of care and may exacerbate and reinforce health disparities through inequitable treatment. Obstetrician-gynecologists and other health care professionals should seek to understand patients' health care decision making not simply as patients' individual-level behavior, but rather as the result of intersecting sociopolitical conditions, structural inequities, and social needs that create and maintain inequalities in health and health care. Recognizing the importance of social and structural determinants of health can help ob-gyns and other health care professionals to better understand patients, effectively communicate about health-related conditions and behavior, and contribute to improved health outcomes, including patients' experience of care and their trust in the health care system.