| Category | Respiratory Problems |
Nasal polyps grow in inflamed tissue of the nasal mucosa. The mucosa is a very wet layer that helps protect the inside of your nose and sinuses and humidifies the air you breathe. During an infection or allergy-induced irritation, the nasal mucosa becomes swollen and red, and it may produce fluid that drips out. With prolonged irritation, the mucosa may form a polyp. A polyp is around growth (like a small cyst) that can block nasal passages. Although some people can develop polyps with no previous nasal problems, there’s often a trigger for developing polyps
