Side effects of TB drug therapy include: 1) gastrointestinal reactions: decreased appetite; 2) impairment of liver function and kidney function: increased transaminases, increased jaundice index, increased urine protein, increased uric acid and other related abnormalities; 3) decreased vision and hearing, and even allergic reactions, including rash and drug fever; 4) psychiatric symptoms and abnormal psychiatric behavior. The above side effects do not occur in every patient and can be avoided or minimized under the supervision of a professional physician, and if they do occur, the related functions can also be restored to normal through the physician’s treatment and adjustment.