Striated pulmonary nodules are a descriptor of imaging tests that primarily refer to the presence of striated scar-like changes in the lungs that require prompt medical attention upon detection. If striated nodules are found on chest radiographs or chest CTs, they are usually due to fibrous scarring, which can be caused by incomplete localized lesion resorption in pneumonia, tuberculosis, or pneumoconiosis. Among them, pneumonia and tuberculosis are caused when they are infected by viruses or bacteria, and when the inflammation is not treated in time it turns into chronic inflammation, which leads to scarring changes. In addition, prolonged exposure to dust-contaminated work environment can induce pneumoconiosis, and the lungs of this disease may also show striated nodular changes. It is recommended that patients with striated nodular lungs should seek prompt medical attention and follow the doctor’s instructions to avoid delays.