Lung nodules 10 millimeters serious need to be divided into circumstances, if it is a benign nodule is not serious, if it is malignant more serious. 1. benign lung nodules: lung nodules 10 mm, if it is benign, generally does not have a great impact on the body, generally will not have obvious symptoms of discomfort, this benign nodules are not serious, you can temporarily do not need to treat, go to the hospital on a regular basis to review can be. 2. Malignant lung nodules: If the degree of malignancy of the nodules is found to be relatively large through examination, and if timely intervention is not carried out, the nodules may continue to increase in size or even metastasize, which is a more serious situation. It is recommended that you should go to the hospital for a detailed examination, and then treat according to the actual situation, and follow the doctor’s instructions.