Nowadays, as people become more health conscious and have more medical checkups, more and more lung nodules will be found. The ground glass nodules in the lungs can be caused by many reasons in three ways: 1. Severe bacterial infection in the lungs leads to this condition, which is often accompanied by coughing and coughing, and even fever and chest pain. For this case can take antibiotic treatment; 2, pulmonary ground glass nodules may also be tuberculosis caused by tuberculosis foci, if it is tuberculosis, patients are advised to further improve the examination as well as chest CT, sputum, PPT test and other tests, clearly is tuberculosis need anti-tuberculosis treatment; 3, pulmonary ground glass nodules may be caused by tumor disease, should improve the pathological biopsy, clear diagnosis. Patients must go to a regular hospital after finding a ground glass nodule, and find a specialist for examination and consultation. The doctor will often suggest further ultrasound or enhanced CT to check whether the mass has lobulation, burr, pleural traction, nodule enhancement, etc., and decide whether the next step is regular observation or surgery according to the situation, and surgical evaluation needs to consider many factors and must be decided carefully.