Lung nodule 6mm last year and 7mm this year, is it serious?

Lung nodule 6mm last year and 7mm this year, there is no obvious change, consider it not serious, the size of the nodule alone can not confirm the diagnosis, you need to go to the hospital for examination.
Since the measurement of lung nodules during imaging examination is affected by many factors, such as the angle of measurement and the number of layers, the diameter will be slightly inaccurate, from 6mm last year to 7mm this year, most of which is negligible.
If there is no change in the lung nodule, the border is clear and smooth, there is no infiltration to the surrounding tissues, and there are no enlarged lymph nodes around it, etc., most of them are considered to be benign tumors, and they can be followed up regularly, and they are considered to be not serious.
However, the nature of the lung nodule cannot be diagnosed solely on the basis of imaging, and the nature of the nodule cannot be determined by the size of its diameter.
Therefore, it is necessary to make a comprehensive judgment to determine whether it is serious or not, and try to consult a doctor at the hospital.