Tuberculosis is contagious, some patients do not have typical symptoms, some patients will have respiratory symptoms, such as coughing, coughing up sputum, etc., and systemic symptoms, such as fever, malaise and so on. Tuberculosis is mainly transmitted through the respiratory tract, such as sneezing, coughing, laughing and laughing loudly when there will be some droplets, droplets contain tuberculosis bacteria, can be infected with tuberculosis. It is also transmitted through the digestive tract, i.e. through food. Transmission through the skin, mucous membranes or genitals is also rare. Clinical manifestations of tuberculosis include respiratory and systemic symptoms, respiratory symptoms include coughing, coughing up sputum for more than two weeks, or sputum with blood, sputum will increase when there is cavity formation. If combined with other bacterial infections, the sputum may be purulent. If combined with bronchial tuberculosis, the patient presents with an irritating cough. Fever is the most common systemic symptom, mostly prolonged afternoon hot flashes. If there is any discomfort in the body, go to the regular hospital for treatment in time.