The early manifestations of pulmonary tuberculosis in children vary in severity and manifestation: 1, the mild ones can have no symptoms, and some patients are suffering from mild cough, sputum or weakness, emaciation, night sweats, which are symptoms of tuberculosis poisoning. tuberculosis, and severe bone tuberculosis. The symptoms of these patients are more serious. 3. Some patients do not mainly have TB symptoms, but other infectious system manifestations, such as fever, weight loss, and delayed growth of children, and do not have typical symptoms of TB poisoning. Therefore, the symptoms of tuberculosis in children are diverse.