It is not recommended to eat breakfast when examining tuberculosis. The examination of tuberculosis includes blood test and other special tests, and the blood test mainly includes blood routine, liver and kidney function, etc. It is not possible to eat at this time or it will affect the reference of the test results. In addition, for the sputum test for tuberculosis bacilli, it is necessary to ensure that there are no other factors affecting the airway and throat. If you eat breakfast, it is likely that the sputum spit out will contain more food residue and affect the test results, so it is not recommended to eat breakfast when conducting the corresponding test for tuberculosis.