Small lung nodules of 2mm are tiny nodules and are not serious. There are 3 types of lung nodules: ground glass nodules, partially solid nodules, and solid nodules. The follow-up time is determined by the size of the nodule: 1 year follow-up for small lung nodules less than 5mm; 3 months follow-up for small lung nodules 6-8mm; and 1 month follow-up for lung nodules larger than 8mm. If a growing nodule is present, early surgical intervention by a thoracic surgeon is required to treat it for fear of malignant changes. Therefore, small pulmonary nodules themselves are microscopic nodules, and nodules of about 2mm are very mild and can be followed dynamically without any medication or surgical consideration. You can change your lifestyle habits, quit smoking, and run to enhance lung function and strengthen immune function.