There are more causes of ground glass nodule shadow in the upper lobe of the right lung, and nodules in the lung are classified as benign and malignant. The common causes are: first, inflammation of the lung resulting in cough, fever, etc., which will improve with anti-inflammatory treatment and after the inflammation subsides. Second, tuberculosis, if there is a general sweating, coughing, coughing, chest pain, hemoptysis and other symptoms when sleeping, it is considered as tuberculosis, and anti-tuberculosis treatment can be carried out. Third, tumor, generally early symptoms are not obvious, there may be coughing, chest tightness, coughing blood, etc. If the nodules are small and the boundary is clear, the shape is also relatively regular, you can temporarily do not deal with more observation.