There are many causes of increased lung texture, which can be pathological, physiological, or due to the technical increase in lung texture caused by the filming, summarized as follows: 1, increased bronchial lung texture, manifested as uneven lung texture thickness, often interspersed with some deformed texture; small cellular inflammation is usually seen in chronic bronchitis, bronchial dilatation, etc.; 2, vascular lung texture Increased pulmonary texture, usually manifested as thick lung texture, from the lung door to the lung, maintaining the characteristics of vascular travel, often accompanied by symptoms of heart enlargement, mainly seen in wind heart disease, precordial disease, etc.; 3, lymphatic increased lung texture, lung texture in the two lungs in a slender network, commonly seen in cancerous lymphangitis; 4, smoking increased lung texture, as the name suggests, is seen in the performance of lung texture of patients who usually smoke, manifested as two lung texture This is mainly due to long-term smoking; 5. Physiological lung texture increase, mainly seen in the elderly or obese people, the lung interstitium of the elderly is relatively rich, so it can show the increase of lung texture, while obese people due to the increase of subcutaneous fat, when the X-ray absorption increases, resulting in increased lung texture. The above five phenomena include pathological, physiological, and technical changes in filming. Therefore, if you encounter a chest X-ray report of increased lung texture, it should be analyzed and treated according to different situations.