Tuberculosis is an infectious disease of the lung with more symptoms and complicated treatment, so many people feel that tuberculosis is very scary, that may be because you do not know it well enough. A. What are the early symptoms of tuberculosis? 1. Long-term cough or blood in the sputum Often you can’t stop coughing or dry coughing, especially in the morning. Sometimes, blood is coughed up, but not much blood is coughed up in the early stage, and there is pain in the chest when coughing up blood. 2. Growing fatigue and weight loss You start to feel very weak and sleepy in the morning and morning, but excited in the evening. Work feels very strenuous and needs rest to recover slowly. Appetite decreases, and the body slowly loses weight and weight. 3, fever or temperature fluctuations often appear hypothermia, especially at night is more serious, sometimes wake up early in the morning will resume normal body temperature, and most of the time the patient itself can not feel. The body temperature fluctuates greatly, with a lower temperature in the afternoon or evening and a higher temperature at noon. 4. Chest tightness and easy night sweats Often there is no reason for chest tightness and chest pain, and there is a tingling sensation in the chest when coughing, and sometimes there is difficulty in breathing. It is easy to night sweat in bed at night, feel dry mouth, and in severe cases, soak clothes. Therefore, if the above symptoms often appear, you should go to the hospital for examination and early treatment to avoid aggravating the disease or infecting more people. The main source of infection of tuberculosis is the patient’s sputum. Patients will discharge sputum into the air when talking, coughing or sneezing, and will be infected if they inhale the sputum with tuberculosis bacteria. 2. Other ways of infection Using the tableware used by TB patients and eating the food they have eaten can be infectious. Therefore, eating with a person with tuberculosis may lead to infection. Mycobacterium tuberculosis can also be infected through the amniotic fluid, and a pregnant woman who is infected with TB is likely to pass it on to her fetus. It is also possible to get infected by contact with the broken skin or genital organs of the patient. Animals can also be infected with TB, so contact with these animals can also be infected.