Background <p>Idiopathic pulmonary fibrosis is a progressive disease that profoundly impacts patients’ psychosocial well-being. Social isolation is a significant but often overlooked challenge in this population. This study aimed to explore the lived experiences of social isolation among patients with idiopathic pulmonary fibrosis.</p> Methods <p>A secondary qualitative analysis was conducted on semi-structured interview data from a parent study involving patients with idiopathic pulmonary fibrosis. The dataset was analyzed via conventional content analysis to systematically interpret patients’ experiences of social isolation.</p> Results <p>Three core themes (antecedents, consequences and coping strategies) emerged from the analysis. The antecedents of social isolation include physical decline, the repercussions of medical interventions, external environmental barriers, and strained interpersonal dynamics. The consequences included reduced social ties and compromised psychological well-being, which coexisted with an emergent desire for social reconnection. Patient coping strategies were centered on the strategic management of finite energy and the proactive pursuit of alternative forms of social support.</p> Conclusion <p>Social isolation in patients with idiopathic pulmonary fibrosis is a complex phenomenon shaped by the interplay of physiological and sociocultural factors. The “antecedent-consequence-coping” framework developed herein offers a nuanced lens to understand the predicament of this group and provides a valuable scaffold for designing robust patient support systems.</p>