Blood draws do not check for Mycobacterium tuberculosis, but they can reveal decreased hemoglobin or leukocytosis in the acute progressive phase. Checking for Mycobacterium tuberculosis can be helped by sputum Mycobacterium tuberculosis tests, tuberculin tests, and other tests to check for the presence of Mycobacterium tuberculosis. Mycobacterium tuberculosis is not usually detectable by blood tests alone, but Mycobacterium tuberculosis infection is associated with decreased hemoglobin or acute progressive leukocytosis. The following tests may be performed to aid in the diagnosis: 1. Sputum Mycobacterium tuberculosis test: Sputum smear, culture method, specific nucleic acid test, etc. can help detect the presence of Mycobacterium tuberculosis from sputum. 2. Tuberculin test: Tuberculin is a specific metabolite of Mycobacterium tuberculosis, a biological agent to identify whether the human body is infected with Mycobacterium tuberculosis and the degree of reaction to the infection, including the old tuberculin and pure protein derivatives of Mycobacterium tuberculosis. It is recommended that patients can pass other tests to help clarify the diagnosis.