BackgroundPersonal disclosure of opioid use disorder (OUD) recovery can lead to relationship outcomes such as social support, which is associated with greater treatment retention, or stigma, which is associated with risk of treatment dropout. Although disclosure may have important impacts on the relationships and ensuing recovery trajectories of people with OUD, disclosure processes remain understudied in the context of OUD. MethodsGuided by the Disclosure Process Model, this longitudinal study explored the disclosure goals of people in treatment for OUD and examined associations between disclosure goals and relationship outcomes. Data were collected at baseline (N = 146) and three months later (n = 124) from participants who were in treatment for OUD and planning to disclose their OUD history and/or treatment to someone new. ResultsQualitative baseline data were analyzed to identify disclosure goals. Approach goals (i.e., reasons for disclosure) included support, honesty, amends, set an example, and logistics; avoidance goals (i.e., reasons against disclosure) included judgment, worry, and privacy. Quantitative data suggested that approach goals at baseline were associated with greater likelihood of disclosure within three months (OR=2.16, 95% CI=1.04–4.49) as well as with greater social support [B(SE)= 0.35(0.16), p = 0.03] and relationship closeness [B(SE)= 0.29(0.17), p = 0.01] following disclosures. In contrast, avoidance goals at baseline were associated with greater enacted stigma following disclosures [B(SE)= 0.30(0.14), p = 0.04]. ConclusionsFindings draw attention to the potentially important role of disclosures in relationship outcomes among people in recovery from OUD. Disclosure may represent a promising intervention target to improve relationship outcomes and recovery trajectories of people in recovery from OUD.