Tuberculosis is a relatively serious disease, but if it is treated and managed promptly in the early stages, it often can be brought under control and most cases can completely recover. If the disease is allowed to progress unchecked, it can develop from ordinary tuberculosis into an especially severe form of the disease, even endangering life and leading to extrapulmonary tuberculosis. The severity of tuberculosis depends largely on the extent of damage to the lungs and whether there is extrapulmonary tuberculosis. Once tuberculosis is confirmed, scientifically sound and appropriate anti-tuberculosis treatment should be undertaken.