Tuberculosis, which may involve most organs is still a major health problem in developing countries. Cutaneous tuberculosis is a rare form of extrapulmonary tuberculosis. Lupus Vulgaris (LV) is the most common form of cutaneous tuberculosis. LV originates from an active or inactive tuberculosis focus in the body and spreads by hematogenous or lymphatic way and by direct or exogenous inoculation. If untreated, Lupus Vulgaris lesions transform to chronic-progressive forms. Malignancy may develop from scar tissue. In this paper, three cases of previously untreated lopus vulgaris with long-duration skin lesions were presented. A diagnosis of Lupus Vulgaris was made based on clinical and histopathological examination. The lesions regressed after treatment with 4 antituberculous drugs. Cutaneous tuberculosis must be considered in cases with chronic skin lesions because tuberculosis prevalance is high in our country. Early diagnosis and treatment of patients with skin tuberculosis is extremely important in order to prevent complications.