How long it takes to discharge a patient with cavitary tuberculosis depends on the patient’s condition, treatment effect and whether drug resistance occurs, etc. Generally, patients with mild condition can be discharged from the hospital in 1-2 weeks, while patients with extremely critical condition, serious adverse reactions or drug resistance may need 2-4 weeks or longer to be discharged from the hospital. Anti-tuberculosis treatment should be early and standardized throughout the appropriate amount of medication, not only to kill Mycobacterium tuberculosis, but also to prevent the occurrence of drug resistance and cause relapse. Most tuberculosis patients can be cured without hospitalization, but only those who are in critical condition or difficult to treat, have serious comorbidities or need surgical treatment need to be hospitalized, for example, tuberculous meningitis combined with hemoptysis, pneumothorax, respiratory failure, chronic pulmonary heart disease, or AIDS, diabetes mellitus, as well as lung tumors need to do the identification of the patient, only need to be hospitalized. Hospitalization.