Ground glass nodules can be seen in lung inflammation, lung cancer, etc. Most of them do not have obvious symptoms, and when the disease progresses, they can be manifested as coughing, coughing sputum, hemoptysis and other symptoms. 1. Ground-glass nodules can be seen in lung infections, such as bacterial infections, fungal infections, etc. Ground-glass nodules caused by mild infections can be asymptomatic. If the disease progresses without active treatment, it may be manifested as chest tightness, tightness of air, coughing, coughing up sputum, and so on, and in severe cases, pleural effusion may occur. 2. Milled glass nodules can also be seen in early stage of cancer, which can be manifested as irritating dry cough, sputum with blood, and in serious cases, symptoms such as dyspnea, chest tightness and chest pain can occur. If you find ground glass nodules, we suggest that you go to a regular hospital in time and listen to your doctor’s advice.