The new crown vaccine will not cause nodules in the lungs, and you can be assured of the vaccination under the guidance of your doctor. The new crown vaccine currently approved for vaccination in China mainly includes recombinant subunit vaccine, inactivated vaccine, adenovirus vector vaccine, before the vaccine is put into clinical use, all of them have gone through a large number of clinical trials, and there is no effective evidence to show that a certain vaccine will lead to the development of nodules in the lungs, and there is no substance in the new crown vaccine that induces the development of nodules in the lungs. Lung nodules can be caused by a variety of reasons, such as smoking, dusty working environment, etc. Patients with lung nodules can undergo regular follow-up with chest ct. If the nodules have a tendency to increase in size, it is necessary to carry out puncture biopsy in a timely manner to clarify the nature of the nodules to avoid malignant changes, on the other hand, if the size of the nodules is relatively small and there has not been any change, then there is no need to be overly concerned. Vaccine is an important way of preventing infection and interrupting the spread of the new coronavirus, and its safety is relatively high, so it should be immunized as much as possible.