Consideration of small nodules in the right lung as sclerosing foci belongs to the diagnosis of intra-lung lesions by CT examination, suggesting that the corresponding lesion is stable and basically does not require too much intervention. Small nodules in the right lung with smooth edges and high density are clinically diagnosed as sclerosing foci by CT examination. Most of the corresponding lesions do not have any clinical symptoms and are stable lesions, which basically do not have a great impact on the physical condition, and only need to be reviewed regularly by CT examination. If the size of the corresponding lesion increases during the review process, and symptoms of low-grade fever and night sweating (abnormal sweating after going to sleep and stopping after waking up) appear, it is necessary to consult a doctor in time for observation, and after diagnosing the physical condition through clinical examination, standardized treatment will be carried out under the guidance of the clinician, so as to avoid any delay in the condition.