What are the symptoms of choanal atresia?

What are the symptoms of choanal atresia?

Generally, infants with choanal atresia have trouble breathing unless they’re crying. Babies with choanal atresia affecting both sides of the nose may have a bluish discoloration (cyanosis) or have breathing failure at birth. In these cases, resuscitation is performed immediately. Babies that only have blockage on one side of the nose (unilateral choanal atresia) may exhibit other symptoms, such as unilateral nasal drainage or obstruction. Often times the symptoms are mild and not recognized until the child is older.