Suspected symptoms of tuberculosis usually refer to the early clinical symptoms of tuberculosis. Due to individual differences, the clinical manifestations are different, mainly manifesting as respiratory symptoms and systemic symptoms, while some patients may also have other local symptoms. I. Respiratory symptoms: 1. Cough and sputum: Patients with cough and sputum lasting for more than 2 weeks are suspected patients of pulmonary tuberculosis. If infected with bacteria, it may appear as yellow purulent sputum. 2. Hemoptysis: About 1/3 of patients with tuberculosis have hemoptysis, mostly a small amount of blood, but a smaller number of patients have massive hemoptysis. 3. Chest pain: With the aggravation of cough, the spread and metastasis of the lesion will lead to pain in the chest, accompanied by chest tightness and breathlessness. If the inflammation involves the pleura, it will seriously lead to pleural effusion. Systemic symptoms: The main manifestation is fever, and presents as fluctuating fever, the temperature starts to rise in the afternoon, and the next morning the temperature drops to normal, and the patient has night sweats, weakness, chills, decreased appetite, gradually thinning, depression, etc. Third, other: a small number of patients will have rheumatoid symptoms, mostly in adolescent female patients, mainly manifested as the involvement of the large joints of the limbs, intermittent nodular erythema or annular erythema. Women of childbearing age may experience menstrual disorders, and men may experience seminal emission. Therefore, when suspected symptoms appear, it is necessary to seek medical attention as soon as possible to improve the differential diagnosis by chest CT, chest X-ray, sputum culture, and nucleic acid test for Mycobacterium tuberculosis divergence, so as to achieve early detection, diagnosis, and treatment.