The presence of a 0.7×0.5cm ground glass nodule in the upper lobe of the right lung requires clarification of the nature of the nodule. If the nodule is benign, regular follow-up is required, and if it is considered to be malignant, early surgical resection is required. When a 0.7×0.5cm ground-glass nodule is found in the upper lobe of the right lung on chest imaging, it is recommended that further examinations such as tumor markers for lung cancer and chest-enhanced CT be performed in order to exclude the possibility of malignant nodules. Generally speaking, ground-glass nodules <0.8cm in diameter may be more benign, and most of them are caused by inflammation, so there is no need to be overly panicked, and it is enough to actively cooperate with the doctor to improve the relevant examinations and continue to have regular review. If malignant nodules are considered, the nodules should be removed as soon as possible after evaluation by a professional physician, and further chemotherapy and radiotherapy should be performed according to the pathological results after the operation.