Tuberculosis usually refers to pulmonary tuberculosis, which is mainly diagnosed through sputum smear, culture of Mycobacterium tuberculosis, imaging and other tests, and can be treated with anti-tuberculosis by drugs. 1. Sputum smear: Sputum smear is relatively fast, simple and accurate, but it is not able to differentiate the specific type of tuberculosis. 2. Mycobacterium tuberculosis culture: Mycobacterium tuberculosis culture in special containers is the current gold standard for diagnosing tuberculosis, and can also help screen for highly sensitive drugs. 3. Imaging examination: mainly X-ray, chest CT and other examinations, which can visualize and clearly observe the site of lung lesions and understand the situation of tuberculosis. Clinical tuberculosis is mainly treated with medication, isoniazid, rifampicin, pyrazinamide, streptomycin and ethambutol, or more than four kinds of drugs for combination therapy, and most of the patients can be recovered after adhering to a sufficient amount of full course of treatment. Tuberculosis is contagious and long-lasting, so it is necessary to follow the doctor’s treatment to standardize the treatment. Drugs need to be used under the guidance of a professional physician, and should not be used arbitrarily.