What causes friable mucosn of the airway?

Friable mucosa of the airway can be caused by a variety of conditions, including chronic inflammation, infections, and irritants. Conditions such as Asthma, chronic obstructive pulmonary disease (COPD), and allergic reactions can lead to increased mucus production and inflammation, resulting in friable tissue. Additionally, exposure to tobacco smoke, pollutants, or allergens can damage the airway lining, making it more susceptible to injury. This fragility can increase the risk of bleeding and complications during procedures like intubation or bronchoscopy.