Physical functionality and performance are important for individuals diagnosed with scleroderma. There is a need to address children and adults diagnosed with scleroderma comprehensively and to evaluate them on a biopsychosocial basis to support their disease management. In light of all this literature, the aim was to evaluate the biopsychosocial characteristics of both pediatric and adult scleroderma patients and to examine their physical performance and functionality. Additionally, this study aims to identify effective tests that can be used in future research to assess physical performance and functionality in individuals diagnosed with scleroderma.