One third of the world’s population is infected with tuberculosis and its incidence is increasing. Systemicglucocorticoids are the mainstay of immunosuppressive therapy for immunobullous diseases and collagenvascular diseases in dermatology. Patients who are given prolonged glucocorticoid therapy may be at riskfor both the acquisition of primary tuberculosis and the reactivation of nonactive tuberculosis. The purposeof this article is to highlight the importance of screening for tuberculos ...