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Introduction Hand dysfunction in systemic sclerosis (SSc) results from joint inflammation, contractures, ulcers, and calcinosis, impairing daily life and quality of life. Conventional therapies often require face-to-face care. This study evaluates a telehealth self-management program with video guidance to improve adherence, hand strength, and function in SSc patients.Material and Methods A 6-week prospective randomized controlled study was conducted in adults with SSc with a hand mobility in scleroderma (HAMIS) score > 1 or a limited range of motion in at least one hand joint. Participants were randomly allocated into three groups for six weeks of health education: (a) typical education, (b) watching video guides as needed, in addition to typical education, and (c) watching video guides and receiving weekly telephone notifications, in addition to typical education. The endpoints were the differences in self-management behavior, HAMIS scores, hand grip strength (HGS), and quality of life (QoL) using the European Quality of Life-5 Dimensions between groups, as well as the changes in these parameters compared to baseline.Results A total of 24 patients per group were enrolled, with the majority diagnosed with diffuse cutaneous SSc (79.2%). Six weeks post-intervention, HGS improved significantly in both the video guide and telephone notification groups compared to typical education in both hands (p = 0.028, p = 0.044). Pincer grip differed between the groups in the non-dominant hand. Household modifications were more frequent in the video guide and telephone notification groups than in the typical education group (p = 0.023). All groups showed significant improvements in HGS and HAMIS scores in both hands, as well as in self-management behaviors, compared to baseline. QoL, as measured using a visual analog scale, improved significantly after the intervention in both the video guide and telephone notification groups, but not in the typical education groupConclusions Self-management telehealth programs effectively enhance hand strength, function, and self-management behaviors in patients with SSc with limited hand function. Weekly telephone notifications further reinforced continuity and engagement in these patients.