There is a contradiction in the question itself, whether a mild or severe disease is a mild or severe disease. Medically, there is no such thing as a mild or severe disease at the same time, as if it were a circle of four sides. Tuberculosis is an infectious disease, caused by the invasion of Mycobacterium tuberculosis into the lungs, and there are mild and severe damages to lung tissue by the tuberculosis bacteria. Mild TB patients can have no symptoms or just a mild cough, while moderately severe TB patients tend to have chronic cough, low fever in the afternoon, night sweats, and weight loss, while very severe TB patients tend to have a serious decline in organ function, especially lung function, due to repeated reproduction of TB bacteria in the body without timely treatment or irregular treatment. This leads to a serious decline in organ function, especially lung function. As a result, they show obvious chest tightness, shortness of breath, dyspnea, and even respiratory failure and heart failure, and eventually die because they cannot receive timely and effective treatment. Therefore, it is important to provide timely and standardized treatment for tuberculosis, whether it is mild or severe.