The condition of pulmonary ground glass nodules with still clear borders found clinically is relatively mostly not serious, mainly common in specific pathogenic infections, such as tuberculosis caused by Mycobacterium tuberculosis infection leading to tuberculosis lesions in the lungs, which can be completely cured by standardized combined use of anti-tuberculosis drugs, so it is not serious. It is also seen in bacterial infections of the lung, such as Staphylococcus aureus, Klebsiella, Pseudomonas aeruginosa, Streptococcus pneumoniae, etc., which can be completely cured by corresponding anti-inflammatory treatment, so it is also not serious.