causes of deviated nasal septum
A deviated septum occurs when your nasal septum â the thin wall that separates your right and left nasal passages â is displaced to one side. A deviated septum can be caused by: A condition present at birth. In some cases, a deviated septum occurs during fetal development and is apparent at birth.
The nasal septum is the wall between the nostrils that separates the nasal passages. The septum is made of cartilage and thin bone. If the nasal septum is crooked, it is called a deviated nasal septum. A deviated septum may be caused by injury or surgery to the nose. A deviated nasal septum may not cause symptoms. When present, symptoms may include a crooked nose, trouble breathing through the nose (especially on one side), or a runny nose.