Bronchial wall thickening can result from a variety of conditions. Chronic inflammatory diseases such as chronic obstructive pulmonary disease (COPD), asthma, and bronchiectasis often lead to this phenomenon. Infections, including bacterial, viral, and fungal infections, can also cause inflammation and thickening of the bronchial walls. Moreover, exposure to irritants such as tobacco smoke, pollutants, and occupational hazards can contribute to the condition.
