Lung nodules that start at 5mm and turn into 6mm three months later are not serious in terms of size change alone, but should be determined according to whether there are changes in the morphology and density of the nodules.
1. Size change: the size of the nodule from 5mm to 6mm there may be a tendency of malignant growth of the nodule, but do not exclude the error of the imaging examination, it is recommended to continue to observe regularly, if the growth rate in six months >2mm should be alert to the possibility of malignant nodules.
2. Changes in the morphology and density of the nodule: if the nodule has a regular morphology, clear margins and uniform density, the possibility of benign nodules is high; if, after comparison, there are changes in the morphology of the nodule, with the appearance of lobes, burrs, vascular signs, or increased density and solid components, the possibility of malignant changes should be guarded against.
It is recommended that patients should seek timely medical attention and be evaluated by a specialist, and if necessary, pathology and tumor markers should be examined to clarify the nature of the nodule.