Living in the same house as a person with tuberculosis can be contagious. Tuberculosis is a chronic respiratory disease that is contagious, and patients with sputum-positive tuberculosis are the source of infection, which can be transmitted mainly through respiratory droplets. For healthy people, if they live in a house with a sputum-positive TB patient and both parties do not take effective protective measures, then the TB patient will cause tuberculosis bacilli to be distributed into the air during the process of talking and coughing, which will lead to the spread of TB infection. For people suffering from tuberculosis, they should not only actively cooperate with doctors to take reasonable medication and do anti-tuberculosis treatment, but also do a good job of protection to avoid spreading the disease to others. Individuals suffering from tuberculosis should go to a regular hospital as soon as possible, and take proper isolation and protection measures to avoid adverse consequences.