Does it matter if there is inflammation in the CT examination of the lungs, it needs to be judged according to the type of inflammation, for example, the most common bacterial pneumonia, patients without underlying diseases, active treatment can restore health, generally not life-threatening. Lung CT examination with inflammation, including infectious and non-infectious, infectious generally include bacterial pneumonia, Mycoplasma pneumoniae pneumonia, Chlamydia pneumoniae pneumonia, viral pneumonia, fungal pneumonia, tuberculosis, etc.; non-infectious including connective tissue disease lung injury, drug lung injury, etc.. Generally speaking, if infectious pneumonia can be detected early and standardized treatment, the prognosis is generally better, but there are special exceptions, such as pulmonary trichinosis, with a high morbidity and mortality rate. Non-infectious pneumonias require targeted treatment for the primary cause, such as active treatment of connective tissue diseases, etc. However, some non-infectious pneumonias may not have a clear cause, and in general, the prognosis of such diseases varies greatly, so it is recommended to follow medical advice to actively prevent and treat the disease. Inflammation on lung CT examination requires further examination to clarify the cause of inflammation; different causes, different treatments, and different prognoses.