The nodular foci in the upper lobe of the right lung cannot be generalized as follows: 1. Surgery: If the nodular foci in the upper lobe of the right lung are lobulated, have burrs, have pleural indentation signs, and have such malignant signs as vacuolar signs and vascular signs, malignancy generally cannot be excluded. In this case, surgical resection may be taken for treatment. 2. Anti-infection: If the nodular foci in the upper lobe of the right lung are smooth, round or round-like solid nodules, the possibility of lung infection is generally higher. If there is no change, the patient should be reviewed again after three months, and if there is still no change, the patient should be reviewed again after six months, and if there is still no change, the follow-up interval should be decided under the guidance of the doctor. 3. It is important to review regularly. If pleural depression sign, vacuole sign or vascular sign appears during the review, it may be malignant tumor. Further examination is necessary for early detection, early diagnosis and early treatment.