Delayed:
1.
Reactionary hemorrhage: This occurs due the wearing off effect of adrenaline and usually occurs within the first 48 hours after surgery.
2. Septal hematoma.
3.
Septal abscess: Result from infected septal hematoma.
4.
Septal Perforation: It occurs if both the mucoperichondrial flaps are torn at the same site.
5.
Meningitis: Infection can spread via the ophthalmic veins or cribriform plate causing meningitis or brain abscess.
6. Pain may persist for a few weeks in a few cases.
7. Septal adhesion and synechiae formation.
Late:
- Atrophic Rhinitis.
- Flapping Septum: This is due to excessive cartilage removal.
- Saddle nose deformity: This occurs due to loss of cartilaginous support over the nasal bridge.
- Columellar retraction: If anterior cartilage strip is removed during surgery this occurs.