What is the problem with lung texture thickening?

Thickening of the lung texture is usually a sign of bronchial inflammation, which may be caused by infection with pathogens or by inhalation of pollutants such as dust, smoke or pungent odors. In fact, the texture of the lung is not the trachea. It is the image of the blood vessels accompanying the trachea of the lung. Because the trachea is empty and air, it is not developed. There are only blood vessels beside it. There is a blood vessel around each trachea. once the trachea is inflamed, the blood vessels will be congested. It is like if the skin is inflamed, it will be red and swollen. Therefore, when X-rays are taken, you will see that these blood vessels become thicker. This is what is commonly called thickening of lung veins.