What can cause pulmonary nodules? Will it eventually worsen and develop into lung cancer?

The first thing to do is to find out the nature of nodules. It is necessary to determine whether it is lung cancer according to the specific size, shape and density. Nodules with a diameter of ≥ 1.5 cm or a diameter of 0.8- 1.5 cm but showing malignant CT signs such as lobulation, burr, pleural traction, vascular channels, bronchioles with air and vesicles, eccentric thick-walled cavities, etc.