This review article delves into the vital role that nurses play in investigating the psychological factors that impact healthcare-seeking behaviors within underserved populations. Nurses, as frontline healthcare providers, possess a unique vantage point to understand the intricate interplay between psychological factors and healthcare utilization in marginalized communities. By employing a holistic approach that considers the social determinants of health, cultural nuances, and individual experiences, nurses can effectively explore the underlying reasons behind disparities in healthcare access and utilization. Through a comprehensive review of existing literature, this article aims to shed light on the significant contributions of nurses in addressing the complex challenges faced by underserved populations in seeking healthcare services. By emphasizing the importance of empathy, cultural competence, and patient-centered care, nurses can bridge the gap between psychological barriers and healthcare-seeking behaviors, ultimately improving health outcomes and promoting health equity in vulnerable communities.