Tuberculosis tends to develop in cases of surgery, trauma, old age and frailty, and the incidence of tuberculosis in elderly patients has been gradually increasing in recent years, so the morbidity characteristics of tuberculosis in the elderly in particular should be taken into account. Tuberculosis in the elderly is mostly secondary to tuberculosis, and the site of tuberculosis lesions and imaging patterns are often atypical. In addition to the symptoms commonly found in patients with tuberculosis, the symptoms are often combined with dyspnea due to age and organ degeneration, and they can easily overlap with the symptoms of existing lung diseases in the elderly, such as chronic bronchitis, pneumonia, asthma, lung cancer, etc. Therefore, the misdiagnosis rate is high, and many diagnoses are delayed until the symptoms of tuberculosis are very serious. In the treatment of elderly patients with tuberculosis, because elderly patients often have not only tuberculosis, but may also have other diseases such as diabetes, hypertension, pulmonary heart disease, pneumonia, lung cancer, etc., the choice of medication can be difficult, and the side effects of drugs can easily occur, and some can even be very serious.