The Patient Self-Assessment of Skin Thickness in Upper Limb (PASTUL) questionnaire was developed to enable patients to assess skin thickness in systemic sclerosis (SSc) physically and has been validated for reliability and validity, as it correlates with the modified Rodnan Skin Score (mRSS), which rheumatologists assess. Thus, it has been demonstrated to be an applicable and easy approach for assessing skin thickness in SSc patients through patient-reported measurements. This study aimed to develop a Turkish version of the PASTUL questionnaire and to provide for its use in the Turkish population.