Lung texture disorders are often seen in patients who have smoked for a long time. Long-term smoking and irritating gases that injure the lungs may cause texture disorders in the lungs. It can also be seen in patients with lung infections, which cause inflammation in the lungs, resulting in disorganized lung texture. Long-term smokers are advised to quit smoking as soon as possible. Smoking can irritate the lungs and cause increased secretions in the airways, resulting in chronic obstructive pulmonary disease, tuberculosis, and asthma in adolescents. At the same time, it can make normal cells cancerous and cause the occurrence of malignant tumors, such as lung cancer, nasopharyngeal cancer, laryngeal cancer, esophageal cancer and other cancers. It can also cause cardiovascular atherosclerosis, resulting in the occurrence of cardiovascular diseases, which is the biggest causative factor of coronary heart disease. As for the lung texture disorder caused by intrapulmonary infection, antibiotic drugs and expectorant drugs can be used for symptomatic treatment, and after 3 months of review of CT, there are generally obvious symptoms of abatement.