The two lower lung textures are increased, generally there must be inflammation of the trachea and bronchus, or sometimes too much exposure to pollution, resulting in inflammation of the bronchus. The inflammation mentioned earlier may be the inflammation triggered by some pathogens coming in after a cold, and the latter is such as pollution, toxins and these stimuli. In fact, it can be considered as an inflammation for the airways, such as the old skin patting red. But toxins irritate the mucosa of the airway and trigger an inflammatory response in the airway, which can also increase the lung texture. What is lung texture? It is a sign that is observed in the lungs during radiological examination. The texture in the lungs is the blood vessels that travel along the bronchial tubes. If the bronchial tubes are inflamed, the blood vessels must be congested and the texture will be heavy. If the inflammation improves, the texture will return to normal. If it is not chronic, the lung texture cannot be heavy all the time. If the lung texture is further aggravated, then it will also be distorted, which may lead to peripheral blurring, and the infection will go from bronchitis to peribronchial infection, which may eventually lead to common inflammation of the bronchi and lungs.