The presence of micronodules in the lower lobe of the right lung is relatively insignificant in most cases. Most of the microscopic nodules that appear in the right lower lobe of the lung are generally benign lesions. It is generally more common to have inflammatory pseudotumors, such as infection by Mycobacterium tuberculosis, and pathogens such as Staphylococcus aureus and Klebsiella, which cause various degrees of pathological manifestations of inflammation in the lung. This time can be due to the treatment of inflammation after complete healing, there will be left with varying degrees of fibrosis and calcification of the lungs, manifesting as micro-nodular lesions. Usually there is no clinical manifestation and no special treatment is needed, just follow up and observe at any time. Only a very small number of patients have a tendency to develop cancer in the right lower lung lobe micronodules, which is a cancerous occupying lesion. At this time, it is necessary to take micro-nodules early and do biopsy to determine the nature of their lesions. If it is clearly cancerous, early surgical treatment with radiotherapy and chemotherapy is needed.