Normal people can get tuberculosis by inhaling droplets with Mycobacterium tuberculosis, and people with weakened immune function and poor resistance are more susceptible to infection. Tuberculosis is caused by Mycobacterium tuberculosis infection, is an infectious disease, normal people inhale droplets with Mycobacterium tuberculosis, may get tuberculosis. Elderly people, infants and young children have weaker immune function and higher prevalence; malnutrition, chronic diseases, and overwork will lead to weaker resistance, which will also increase the probability of getting tuberculosis. In order to prevent TB, it is important to develop good hygiene habits, ventilate the room, wear a mask when going out, and avoid close contact with TB patients. If you have symptoms similar to those of TB, you should also consult a doctor for treatment.