Is it normal to have lung nodules in your twenties?

In general, having pulmonary nodules in one's twenties is not normal. The detailed analysis is as follows:

Pulmonary nodules refer to small, round or oval-shaped lesions within the lung tissue. These lesions are typically less than 3 centimeters in diameter and can be detected via chest X-ray, CT scan, or other imaging examinations. Pulmonary nodules are usually asymptomatic, although some individuals may experience symptoms such as coughing, shortness of breath, or chest pain. They may arise from various causes including infections, environmental factors, or unhealthy lifestyle habits. While pulmonary nodules can occur at any age, their presence in individuals in their twenties is considered unusual. Younger people are more likely to have benign nodules, while malignant nodules are relatively rare; the risk of malignancy increases with age. Although it is possible for someone in their twenties to develop pulmonary nodules, their occurrence at this age—especially when accompanied by symptoms such as cough, sputum production, blood-tinged sputum, or low-grade fever in the afternoon—is considered abnormal.

If a person in their twenties is found to have pulmonary nodules, it is recommended to visit a正规 hospital to determine the nature of the nodule and receive appropriate treatment, so as to avoid delaying diagnosis and management.