Increased texture with few streaks in both lungs may be due to pulmonary fibrosis and old pneumonia. 1. Lung fibrosis: Lung fibrosis may be caused by inflammation, lung injury, long-term smoking, etc. Patients may experience symptoms such as dyspnea, dry cough, fatigue, etc., and diffuse reticular or nodular shadows may appear in both lungs. 2. Stale Pneumonia: Stale Pneumonia may be caused by long-term pneumonia and recurrent episodes, the patient may have chills, high fever, dry cough and other symptoms, the lungs usually show fibrous cord-like shadow. If the examination finds that the texture of both lungs is increased with a few streaks, it is recommended that the patient go to the hospital for diagnosis and treatment in time.