If nasal polyps are not treated adequately, it can lead to 1. Recurrent sinus infections – With polyps blocking the sinus drainage pathways, recurrent sinus infections are prevalent.  2. Incrase in frequency and severity of asthmatic attacks – Like the nose, i.e., the air filter of our body is blocked, asthmatic patients breathe through the mouth, which provokes the asthmatic attacks. Also, the postnasal drip, which drops from the back of the nose into the throat in nasal polyps patients, can initiate asthmatic attacks. The mucosal lining of the nose and lining of the lungs are connected, making it “one continuous airway”, and the disease affecting one can affect the other. 3. Sleep apnea – Sleep apnea of obstructive type in which the patient ceases to breathe for a few seconds during sleep. These are called apneic spells, and this condition can cause dangerous consequences if left untreated.