ObjectivesThis study aimed to examine the association between the incidence of musculoskeletal disorder episodes (MDEs) and obsessive and harmonious passion as well as performance anxiety throughout a dance season, which lasted 38 weeks. DesignProspective cohort study. MethodsA total of 118 professional and preprofessional dancers were recruited and assessed at baseline, while 88 completed the follow-up. Their levels of passion and performance anxiety were assessed at the beginning of a dance season using the Passion Scale and the Kenny Music Performance Anxiety Inventory, respectively. To monitor the incidence of MDEs throughout a dance season, dancers were asked to complete a weekly electronic diary. ResultsA higher level of obsessive passion was associated with a higher incidence of MDEs causing an interruption of dance activities (β = 0.264, p = 0.022). Harmonious passion and performance anxiety were not associated with MDEs throughout the season. ConclusionsFindings of this study support the role of obsessive passion in the development of MDEs in dancers.