People with strong immunity who are infected with tuberculosis bacilli do not need to be treated if they can clear the bacilli from their bodies in time and have no obvious clinical manifestations, while those who cannot clear the bacilli from their bodies in time and develop active infections need to be treated in time. For ordinary people with strong immunity who are infected with tuberculosis bacilli, if the body can clear the bacilli in time and there is no obvious clinical manifestation, then there is no need to receive treatment; if the bacilli cannot be cleared in time and the infection develops into active tuberculosis, then it is necessary to receive relevant treatments in time. There are some latent Mycobacterium tuberculosis infected patients in the clinic. Although these patients are infected with Mycobacterium tuberculosis but have no obvious clinical manifestations and are not contagious, they may still develop active tuberculosis, and their lifetime risk of developing tuberculosis is as high as 15%. For patients infected with tuberculosis bacteria, they should receive relevant examinations in a timely manner to avoid delays in their condition.