The formation of cavities in tuberculosis indicates a long course of disease, mostly active tuberculosis, and the sputum is positive for antacid bacilli, which requires timely antituberculosis treatment. In some patients, the cavity will gradually shrink and heal after anti-tuberculosis treatment. In the process of treatment, it is necessary to pay attention to rest and strengthen nutrition to enhance physical fitness. Because most cavitary TB is highly contagious, it is necessary to pay attention to isolation, either at home or in hospital, and to pay attention to room ventilation and sputum management. After the anti-tuberculosis treatment, it is necessary to review the lung CT regularly to assess the efficacy of the treatment.