Case analysis experts answer: nasal polyps are more common in adults, slightly higher in men than in women, and are formed by the extremely edematous nasal mucosa and sinuses gradually drooping under the action of gravity. It is generally believed that chronic infection and allergic reaction are the possible causes of the disease. Accompanied by persistent nasal congestion, decreased sense of smell, increased nasal discharge, headache, dizziness and so on. Nasal polyps not only affect breathing ...