Nasal polyps are non-cancerous growths that line the nasal passages and sinuses. They are soft, painless, and hang down like teardrops. Small nasal polyps may not cause any problems. Larger polyps ...

When sinuses become blocked and filled with mucus, they ... polyps, allergies, infections, or other medical conditions. If you've had symptoms for more than 12 weeks, your doctor may do an exam ...