Lung texture is an imaging term that refers to striated shadows radiating outward from the hilum. Increased and enlarged lung texture can be due to physiologic or pathologic factors. Lung texture consists of pulmonary arterioles, bronchioles, and lymphatics, and appears on imaging as a shadow emanating from the hilum and distributed in a roped pattern toward the lung fields. Lung texture is also distributed in chest radiographs of normal people. Elderly and obese people may show physiologic increase in lung texture, which is usually not accompanied by any symptoms. In addition, if the lung texture is pathologically increased and enlarged, it often suggests the presence of chronic bronchitis, bronchiectasis, pneumoconiosis and other lung diseases, which may appear the dilatation of bronchial tubes, lymphedema, etc., as well as certain cardiac diseases such as rheumatic heart disease, etc. can lead to vascular increase in lung texture, which leads to the increase in the number of lung texture and coarsening of the image. If pulmonary texture increases in size, it is recommended that the patient consult a hospital if necessary and follow the doctor’s instructions for active treatment.