Lung nodules found after the second dose of New Crown vaccine need to be diagnosed promptly. Benign nodules can be left untreated for the time being, but in severe cases, surgical removal is required. Lung nodules are localized lumps in the lungs that appear as granulation tissue growths with a local density higher than that of the lung tissue, and this type of nodule is not related to the New Crown vaccine. Most of these nodules are benign and a few may be tumors. Benign nodules usually pay attention to regular review can be, but if the tumor is caused by the nodule is no way to self-healing, only surgical removal. Lung nodules are a common disease, symptoms need to consult a doctor in time to investigate the cause of the disease, if there is any discomfort, should consult a doctor in time to listen to the professional advice of the doctor for treatment, so as to avoid delays in the condition of the disease and cause serious consequences.