http://welcometonasalpolypscausesanditssolutions.wordpress.com - We have studied what causes nasal polyps and conclude that nasal polyps are noncancerous and have the shape of a teardrop, and it can be found in sinuses or nose. We have studied what causes nasal polyps and conclude that nasal polyps are noncancerous and have the shape of a teardrop, and it can be found in sinuses or nose. We have studied what causes nasal polyps and conclude that nasal polyps are noncancerous and have the shape of a teardrop, and it can be found in sinuses or nose. We have studied what causes nasal polyps and conclude that nasal polyps are noncancerous and have the shape of a teardrop, and it can be found in sinuses or nose.