It takes several years from a small nodule to lung cancer

If the nodule is benign, it will not turn into cancer. But if the nodule is malignant, it may take 1 to 3 years or even longer for it to develop into lung cancer.

Generally speaking, if a small nodule is benign, it will not turn into cancer. But if a small nodule is malignant, it may take 1 to 3 years, or even longer or shorter, for it to develop into lung cancer, depending on the size and nature of the nodule and the individual differences of the patient.

The nature of the nodule is one of the key factors. Mixed ground glass nodules are often more malignant and are prone to induce lung cancer. Pure ground glass nodules and solid nodules larger than 8mm also need to be closely reviewed because they also have the risk of canceration.

The patient's age, physical condition, and lifestyle habits can also affect the speed of nodule development. Patients who smoke a lot may develop lung nodules into lung cancer in a relatively short period of time, while patients who do not have the habit of smoking may develop relatively slowly.

Lung nodules are not necessarily lung cancer. Most lung nodules are benign, and only a few may develop into lung cancer. After the discovery of lung nodules, regular follow-up and monitoring should be performed to promptly detect and treat potential malignant lesions.