Objective: Verruca vulgaris is a benign epithelial proliferative disease caused by human papilloma viruses. Topical and intralesional vitamin D applications are effective methods in the treatment of warts. However, the relationship between the disease and serum vitamin D levels is unclear. The correlation between the severity of the disease and serum 25-hydroxy vitamin D (25-OH vit D) levels have not been previously investigated. This study aimed to determine the relationship between serum 25-OH vit D levels and disease severity in patients with verruca vulgaris.
 Material and Methods: Serum 25-OH vit D levels were evaluated in 40 patients with verruca vulgaris and 43 sex and age-matched healthy volunteers. Serum 25-OH vit D levels were compared by grouping the patients according to the severity and duration of verruca vulgaris disease Results: There was no significant difference in serum 25-OH vit D levels between verruca vulgaris patients and the control group (p=0.760). There was no significant difference between serum 25-OH vit D level, disease severity and disease duration in the verruca vulgaris group (p =0.102, p=0.257, respectively).
 Conclusion: Serum 25-OH vit D level was not associated with verruca vulgaris. Serum 25-OH vit D levels are not related to disease severity and duration. Our data do not support vitamin D supplementation for the prevention or treatment of verruca vulgaris.