The partition separating the left and right sides of the nose, called the septum is sometimes crooked. This crooked condition is called a deviated septum. Some people are born with this abnormality, but sometimes it is the result of an injury.
Very few people have a perfectly straight septum, but endoscopic sinus surgery is only recommended for those whose septum is crooked enough to cause significant sinus blockage. The surgery can then straighten the septum and improve breathing.
relieve nasal blockages;
relieve facial pain;
improve breathing; and
improve the sense of smell and taste.