Tuberculosis how long can’t live together, mainly according to the recovery of tuberculosis treatment to judge. How long can patients with tuberculosis live together is mainly based on the patient’s treatment to determine the recovery time. When the patient has no clinical symptoms such as coughing, coughing up sputum, loss of appetite, low afternoon fever, etc., when the lung CT detects calcification or disappearance of tuberculosis foci, and when sputum examination does not find tuberculosis bacilli, it is considered that he can cohabitate. During the course of drug treatment for TB, avoid overwork, do not cohabit when clinical symptoms and signs are not relieved, and regularly review the growth of TB foci and observe whether there is any liver cell damage caused by the use of anti-tuberculosis drugs. Patients with tuberculosis are advised to consult the Infectious Diseases Department of regular hospitals for diagnosis and treatment.