The Prevalence of Vitiligo Among Patients With Thyroid Diseases

Introduction Thyroid diseases are associated with skin-related chronic and autoimmune complications. Among these disorders, vitiligo is considered a problem affecting individuals' quality of life. In this study, we investigated the frequency of vitiligo among patients with thyroid diseases. Methods This cross-sectional study was conducted on 724 patients with thyroid dysfunction referred to the Razi Clinic in Rasht, Iran, in 2022. Dermatologists and endocrinologists diagnosed vitiligo and thyroid diseases, respectively. Patients' demographic and clinical data were collected and analyzed by SPSS software Version 22 with a significance level < .05. Results Out of 724 patients with thyroid diseases, 627 were female, and 12 had vitiligo. About 46 patients had hyperthyroidism, 67 patients had subclinical hyperthyroidism, 55 patients had hypothyroidism, 513 patients had subclinical hypothyroidism, 25 patients had Hashimoto's disease, and 18 patients had Graves' disease. Vitiligo was more prevalent in the hands area among the patients. The prevalence of vitiligo demonstrated a significant association with gender, occupation, duration, and type of thyroid disease, in which the prevalence of vitiligo was higher in males, those who are self-employed, those with a duration of thyroid disease of less than 1 year, and patients with Hashimoto's disease ( p < .05). Conclusion According to the results, among patients with thyroid diseases, those with male gender, early affected, and with Hashimoto's disease represented a higher prevalence of vitiligo compared to others.