Lung nodules caused by smoking firstly need to quit smoking, secondly need to be followed up regularly according to the size of the nodules, and at the same time strengthen the exercise. 1. Quit smoking, smoking is the root cause of these lung nodules, if you can’t quit smoking in time, it will only lead to aggravation of the disease, so quitting smoking in time is the most important measure. 2. Regular follow-up, if the diameter of lung nodules is 4~6mm, follow-up is usually conducted after 12 months to assess the changes of the nodules; if the diameter of lung nodules is 6~8mm, follow-up is conducted after 6~12 months; if the diameter of lung nodules is larger than 8mm, pathological examination is required to clarify the nature of the nodules. 3. Strengthen the exercise, jogging, swimming and other exercises, gradually improve the lung function and immunity, is conducive to the absorption of lung nodules. It is recommended to consult a doctor in time and follow the doctor’s instructions for reasonable treatment.