There are three main types of scattered multiple nodules in both lungs: 1) benign nodules with smooth nodule margins and no burr sign, clinical symptoms are not obvious, and only regular review is needed to observe whether there are dynamic changes in the nodules. 2) malignant nodules with unsmooth margins and burr sign, clinical manifestations such as fever, chest pain, coughing up blood, and wasting may occur. At this time, surgical treatment, radiotherapy, chemotherapy, target cell drug therapy, etc. can be considered.3. Multiple nodules in both lungs caused by pathogenic bacteria, such as bacterial infection, viral infection, infection of mycoplasma, infection of Mycobacterium tuberculosis, etc. If the patient has multiple nodules in the lungs due to pathogenic bacteria, anti-pathogenic treatment is required. For example, antibiotics are used to treat bacterial infections and anti-tuberculosis drugs are used to treat Mycobacterium tuberculosis infections.