Nasal polyps are noncancerous, teardrop-shaped growths on the lining of your sinuses or nasal passages. Nasal polyps are associated with chronic inflammation of the lining of your nasal passages and chronic sinusitis. Sometimes, the nasal polyps may be due to a benign (non cancerous) tumor and on very rare occasions, it may be malignant (cancerous). These nasal polyps tend to obstruct the outflow tract of the sinuses resulting in acute and chronic sinusitis. Nasal polyps treatment in Singapore can help with clearing blocked nasal passages.