When someone in the family has tuberculosis, family members may be infected and therefore need to be tested. Tuberculosis is a chronic respiratory infectious disease, caused by tuberculosis mycobacterium infection, the population of tuberculosis mycobacterium general susceptibility, especially the immunocompromised population is common. Mycobacterium tuberculosis has the ability to be very infectious and pathogenic, and tuberculosis patients living together with people are closely related to our tuberculosis patients in contact with people may be infected with tuberculosis, should go to the hospital in a timely manner to check can be ruled out. Tuberculosis prevention, the most important measure is the BCG vaccination, protection effectiveness in ten to twenty years. Active TB patients need to wear masks, do not spit, keep indoor ventilation, ultraviolet radiation disinfection, etc., are effective means to cut off the transmission pathway. The vast majority of TB patients can be cured through standardized treatment according to the doctor’s requirements. They restore their own health and protect their families.