The nasal septum is a thin wall made of cartilage and bone that divides the nasal cavity into two nostrils. It plays a crucial role in supporting the structure of the nose and ensuring proper airflow through each side. A well-aligned septum helps maintain balance in breathing and contributes to the overall function of the respiratory system. When the nasal septum is deviated, meaning it is not straight, it can lead to breathing difficulties, sinus infections, and other issues. Treatment options for a deviated septum may include medications or surgical procedures, such as septoplasty, to correct the alignment and improve airflow.