Juvenile idiopathic arthritis (JIA) is a chronic systemic inflammatory disease, which affects children and adolescents, characterized by significant differences when compared to inflammatory rheumatisms in adulthood. Today, in a panorama enriched in the last decades with great improvements in the diagnostic and therapeutic field, a far from negligible portion and an increasing number of patients with JIA require the continuation of treatments in adulthood. This specific population of patients, given the high incidence of extra-articular manifestations, residual irreversible disabilities, comorbidities related to an inflammatory process and extended immunosuppressive treatments during the age of development, requires precise attentions in the follow-up and a multidisciplinary approach characterized by different clinical, psychological and social aspects.