The statement that 70% of people over 30 years of age have lung nodules is incorrect and not scientifically supported.
Lung nodules refer to single round, round-like nodular lesions in the lungs. Lung nodules are mostly asymptomatic, and a small number of patients may have non-specific symptoms such as cough, chest tightness, chest pain, etc., which have little to do with age.
If you are healthy and do not have any abnormal reaction, nodules will not suddenly appear in your lungs after the age of 30.
If you have previous tuberculosis, chronic obstructive pulmonary emphysema, pulmonary fibrosis and other lung diseases, the lesions are not fully absorbed during the treatment process, but also prone to produce value-added nodules.
Therefore, lung nodules are not determined by age; family history, lung disease, and emotions are all relevant.
If you suspect that you have lung nodules, you can choose to go for a CT scan and then analyze the nature of the nodules based on the relevant tests.