Materials and Methods: Patients who underwent primary hyperhidrosis surgery from February 2013 to January 2017 were retrospectively evaluated and divided into two groups: Group 1 with normal thyroid function and Group 2 with subclinical hypothyroidism. All patients completed a postoperative satisfaction questionnaire on a 5-point Likert scale, with Cronbach’s Alpha reliability coefficients of 0.93 preoperatively and 0.96 postoperatively. The questionnaire assessed satisfaction differences between groups in daily life following surgery.

Results: A total of 82 patients aged 18-65 and met Hornberger’s criteria were evaluated in the study. Patient satisfaction rate was 80.5% for the overall population. Although the difference between preoperative and postoperative state was statistically significant (Greenhouse-Geisser; p < 0.0001), no statistically significant difference was found in postoperative satisfaction between Group 1 and Group 2. (p = 0.13).

Conclusions: Subclinical hypothyroidism does not impact the outcomes of endoscopic thoracic sympathectomy; thus, patients with this condition can safely undergo the procedure based on this study's findings. Keywords : hyperhidrosis, subclinical hypothyroidism, postoperative satisfaction, analysis, questionnaire