Nasal septum

The nasal septum is the wall that separates the left and right nostrils. It is made up of cartilage, bone, and other tissues. If the septum is centered in the middle of the nose, air flows equally through each nostril.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.