Risk factors for nasal polyps

出典: くみこみックス

Aspects for Nasal Polyps

Nasal polyps could potentially affect people of little age, but they're most commonly encountered in adults over age 40, and so are twice as more likely to affect men as women. They rarely affect children under age 10. When young children develop nasal polyps, cystic fibrosis should be considered being a possible diagnosis.
Although nasal polyps are linked to allergic rhinitis, asthma, aspirin allergy, sinus infections, acute and chronic infections, a remote body in the nose, and cystic fibrosis, repeatedly the cause is unknown. Sometimes, the formation of nasal polyps precedes the development of asthma or sinusitis.
Some researchers theorize that problems of allergies -- including runny nose, sneezing, and itching -- predispose others to develop nasal polyps. Other researchers theorize that sinus infections -- which cause tissue swelling and diminished drainage -- spur the formation of nasal polyps. However the allergic connection is controversial. Some research suggests nasal polyps may develop in nearly one-third of patients with asthma but only in about 2% of patients who have seasonal allergies with zero study of asthma.