Tuberculosis, especially active tuberculosis, is contagious to family members because it is an infectious disease. Therefore, if tuberculosis is diagnosed, especially the open type, that is, sputum smear positive, and tuberculosis bacteria are found in the sputum, it means that it is contagious and must be isolated. The three main principles of treatment for tuberculosis are isolation, anti-tuberculosis and adequate nutrition, the first being isolation because it is contagious. After the diagnosis of tuberculosis, you should actively cooperate with the treatment, early, combined, regular, full, and adequate, which is the principle of medication for the treatment of tuberculosis, never stop the medication or change the program by yourself, but must complete the treatment program completely. Tuberculosis can be cured, but if treatment is not standardized and drug-resistant tuberculosis develops, it may make treatment very difficult.