The main danger of smoking despite having lung nodules is that the condition may worsen and may even lead to lung cancer. If the lung nodules are benign, most of them can be cured if timely treatment is provided and bad habits are changed. However, if a patient smokes for a long time, he or she will inhale a lot of harmful substances, such as nicotine, tar and carbon monoxide, which will cause continuous stimulation to the lungs, thus promoting the growth of nodules or creating new ones. Lung nodules that are hyperplastic lymph nodes or chronic inflammatory fibroproliferative lesions do not require special treatment, but you need to quit smoking as soon as possible. In addition, many substances in cigarettes are carcinogenic, such as nicotine. If you smoke for a long time, it is likely to increase the probability of malignant lung nodules. If the nodules are malignant, smoking will lead to further aggravation of the condition, which is not conducive to treatment. It is important to cooperate actively with your doctor and undergo regular checkups after developing lung nodules, and make sure you quit smoking.