Symptoms of tuberculosis are related to the type, nature and extent of the lesion and the reactivity of the organism. The common ones are fever, night sweats, cough and sputum. 1. Systemic Symptoms: As Mycobacterium tuberculosis multiplies in the body, it produces toxins, leading to the most common systemic symptom of tuberculosis fever, which is mostly prolonged and low-grade. It usually occurs in the late afternoon or in the middle of the night, and may be accompanied by fatigue, night sweats, weight loss, and so on. With the progress of the disease can appear high fever, cough, systemic failure and so on. 2. Respiratory symptoms: cough is a common symptom of pulmonary tuberculosis, generally due to the tuberculosis bacillus invading the interstitial lung, mostly dry cough or a small amount of mucus sputum, there may also be varying degrees of hemoptysis. Bronchial tuberculosis is due to mycobacterium tuberculosis invades the bronchial mucosa, causing increased mucus secretion, there may be irritating choking cough and restricted wheezing. 3. Other systemic manifestations: Lymph node tuberculosis can also be seen, also due to the tubercle bacillus invades the lymphatic tissue, resulting in tissue necrosis. It often presents with painless lymph node enlargement, necrosis, liquefaction, and fistula formation. Tuberculous meningitis is a meningeal lesion due to invasion of the meninges by tubercle bacilli through the blood circulation and is characterized by headache, vomiting, and impaired consciousness. Tuberculosis can also have other symptoms, and it is recommended to seek prompt medical attention, follow the doctor’s instructions for further examination, clarify the cause with the doctor’s help, and carry out targeted treatment or therapy.