Background: Sexual health needs are insufficiently met for persons living with rheumatological diseases and it is necessary to create better ways to meet these needs. 

Objective: To co-create a working model to improve sexual health for persons living with rheumatological diseases, that can be used by rheumatological teams in regular rheumatology practice. 

Design: This study applied a co-creation design with three key features: 1) it took a systems perspective with emergent multiple interactive entities; 2) the research process was viewed as a creative endeavour with strong links to design, while human imagination and the individual experience of patient and staff were at the core of the creative design effort; 3) the process of the co-creative efforts was as important as the generated product. 

Results: A model defining the role of the patient, the professionals, and the team in optimizing sexual health for persons living with rheumatological diseases was co-created. The model can be seen as a practice guideline, which includes the support needed from and to each participant in the process of promoting sexual health, while being within the professional scope of the professionals’ knowledge and capacity, and in line with the needs of the persons living with rheumatological diseases. 

Discussion and Conclusions: The co-creative work process identified crucial factors in promoting sexual health, resulting in a useful model for patients, professionals and teams. Co-creation was experienced to be a useful research design to improve rheumatological care, through valuing and using the competence of all research members equally.