Pneumonia cannot be detected by auscultation of the lungs. In the early stages of pneumonia, there is no abnormality on auscultation of the lungs, but in the end stage of pneumonia, wet rales can be heard. Clinical symptoms of pneumonia include cough, yellow sputum, fever, etc. Infiltrative shadows of inflammation may appear on lung CT or chest radiographs, and blood tests may show elevated white blood cells, neutrophils, neutrophil percentage, and C-reactive protein and calcitoninogen in bacterial infections. When the patient has pneumonia due to mycoplasma infection, the patient’s mycoplasma antibodies will be more than quadruple elevated in the near future.