The duration of medication for TB patients is determined by the patient’s specific condition. For the first treatment of tuberculosis patients, his course of treatment is 6 months; for the re-treatment of tuberculosis patients, his course of treatment is 9 months; if it is multidrug-resistant tuberculosis patients, his course of treatment is 18-24 months; if it is a multi-site tuberculosis, such as tuberculosis combined with vertebral body tuberculosis or tuberculosis combined with tuberculosis meningitis, the cycle of treatment is more than 1 year. Of course, these times are not absolutely fixed, need to make appropriate adjustments according to the patient’s condition, if there are some patients with poor absorption of lung lesions, the course of treatment can be appropriately extended.