Patient: Patient’s gender: male Patient’s age: 11 years old BCG vaccination on the second day of life, school screening results: TB test results were strongly positive, X-ray report: chest orthopantomograph: two lung hilar area shadow is not large, two lung texture slightly increased thickening, heart shadow size morphology did not see obvious abnormalities, two diaphragm top smooth, rib diaphragm angle sharp. The remaining (-). What is the meaning of the slightly increased and thickened texture in both lungs? Do I have to do a sputum test? Do I have to do a sputum test? Can the blood be analyzed? I went to the disease prevention station in the morning for a blood test, and the results came out at 3:00 p.m.? The results came out at 3 pm? No need to check sputum.