One nostril is often more blocked than the other
You have trouble breathing through your nose, especially on one side
You snore loudly or breathe through your mouth at night
You get frequent sinus infections
You have repeated nosebleeds
You feel pressure or congestion in your nose or face
Your nose sounds blocked even when you do not have a cold
You notice one side of your nose looks smaller or more narrowed
You have trouble sleeping because of nasal blockage
You have a history of nasal injury or a broken nose
A doctor can confirm it with a nasal exam or nasal endoscopy
A doctor may order imaging if needed to check for other causes