You can not judge the probability of cancer simply according to small lung nodules, clinically, small lung nodules are mainly divided into solid nodules, partially solid nodules and pure ground glass nodules, the probability of cancer is different according to their nature, as follows. 1. Solid nodule: mainly refers to the nodule whose lesion has completely covered the lung parenchyma, this type of lung nodule has the chance of malignant transformation, but most of them are benign, and the proportion of malignant nodules is relatively small. 2. Partial solid nodule: mainly refers to the current lesion has covered part of the lung parenchyma nodule. This type of lung parenchymal nodule has a higher possibility of malignancy, ranging from 20% to 70%. 3. Pure ground-glass nodule: mainly refers to the current lesion does not cover the lung parenchyma, which is more likely to be benign, and the chance of malignant nodule is relatively low. If tiny nodules are found in the lungs through imaging examination and you are worried that they are caused by lung cancer, you should diagnose and analyze them through pathological biopsy as soon as possible, and treat them as soon as possible after you find out the problem.