The new coronavirus vaccination does not usually produce lung nodules and is not directly related to the new coronavirus vaccination. The production of lung nodules may be related to tuberculosis, tumors and bacterial infections. Neocoronavirus vaccination is effective in preventing human infection with the new coronavirus and is relatively safe. Lung nodules are usually not produced, and are usually not an adverse reaction to the new coronavirus vaccine, and are not directly related to vaccination with the new coronavirus vaccine. The development of lung nodules may be associated with tuberculosis, tumors, fungal infections, bacterial infections or environmental factors. Patients with lung nodules need to go to the hospital for relevant examinations to clarify the specific causes of lung nodules, and then give targeted treatment, choosing surgical treatment or follow-up observation. In addition, daily exercise to improve immunity, pay attention to warmth, prevent cold.