The main reasons for the formation of drug-resistant tuberculosis are many, but it is believed that the main reason is that patients are irregularly medicated with the full course of medication, causing patients to irregular anti-TB for the following reasons: 1. Most patients with tuberculosis are economically disadvantaged because they have to take medication for a long time, so they are forced to interrupt due to financial difficulties and do not receive timely treatment to form drug resistance; 3, because drug-resistant tuberculosis is different from ordinary tuberculosis, it requires 4-5 drugs to form the core regimen, which increases the number of adverse reactions. Many patients are unable to tolerate the adverse effects during the course of taking the drugs, leading to drug interruptions; 4. Many of the following medical institutions still do not know enough about drug-resistant tuberculosis, and treatment is weak, which to some extent delays the treatment of patients. Therefore, for patients with drug-resistant tuberculosis, it is recommended to go to a specialized tuberculosis hospital for treatment.