A chest X-ray or chest CT examination reveals that the lung lesion has been fibrous hard calcification, indicating that the lesion has been relatively stable and is an old lesion, often due to the lung once suffered from the disease, after treatment to improve or self-absorption to improve, and the fibrous striae shadow left behind, and has been calcified. These lesions are generally stable in nature and do not require special treatment. They are mostly seen as a sign of improvement of pulmonary tuberculosis and can be reviewed clinically on a regular basis. Of course, some patients may have recurrence of the disease on top of the original one, or may have bronchiectasis as a complication, so they should be reviewed regularly.