Nasal polyps can develop when the mucous membrane in the nasal passages and sinuses becomes chronically inflamed. Inflammation lasting more than 12 weeks is typically considered chronic.
Nasal polyps are noncancerous growths along the lining of your nasal passages or sinuses. Large polyps can obstruct nasal passages and lead to breathing challenges, anosmia (loss of smell), recurrent sinus infections and other complications.
Adults, particularly those with asthma, frequent sinus infections and allergies, are more susceptible to developing nasal polyps. Children living with cystic fibrosis also often develop nasal polyps.
Diagnosis is based on symptoms, physical examination and nasal inspection. Visible polyps may be detected using a lighted instrument.
Other diagnostic tests include:
Treatments may involve:
Should medications prove inadequate, surgery may be necessary:
To prevent polyp recurrence after surgery, a corticosteroid nasal spray is usually prescribed. Regular saline rinses can aid in the healing process.