How are nasal polyps caused?

Patient's question:

Doctor, hello! My husband has been feeling some pain in his nose these past two days, especially when rubbing his nose, it feels particularly painful. After a thorough examination, the doctor said I have nasal polyps and wanted to consult the doctor. What are the causes of nasal polyps?

Doctor's answer:

The etiological theories of nasal polyps are several, but most are:
1. Allergies. Experiments have found that nasal polyps contain high levels of IgE and autoimmune complexes, which are believed to be related to type I and type III allergies.
2. Chronic inflammation. Long-term chronic inflammation of the nasal mucosa or frequent irritation by purulent sinus secretions leads to congestion, swelling, venous congestion, and increased exudation of the nasal mucosa. Additionally, the action of bacterial toxins also promotes increased exudation of small blood vessels and mucosal edema, resulting in recurrent polypoid inflammation over time.

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