Nearly 48 million people in the United States are diagnosed with or self-report some degree of hearing loss. It is the third most common chronic physical condition (CDC, 2018). By 2050, the World Health Organization (WHO) anticipates roughly 700 million, or one in 10 people worldwide, will have a disabling level of hearing loss. Despite these staggering statistics, hearing healthcare, including hearing assistive technology, remains widely underutilized (NIDCD, 2021). In this session, presenters examine the ramifications of untreated hearing loss across the lifespan, from infancy and early childhood development to adolescence to adulthood, and the ways in which systemic inequities and other social determinants of health directly contribute to the underutilization of and disparities in hearing healthcare.