Septal Haematoma
This occurs when blood collects underneath the lining of the septum (the central partition of the nose), it is stripped off either side and causes a purple swelling inside the nose. This will cause a painful nasal obstruction and needs to be treated as soon as possible by surgically draining away the blood and taking a course of antibiotics.
If the blood is not drained, it can become infected or damage the underlying cartilage that supports the nose. This may ultimately result in a saddle nose deformity, caused by the nose no longer being supported by the septum.
Nasal obstruction
A nasal obstruction can occur after an injury due to swelling inside the nose which may take a few days to go down. However, if there is still an obstruction after three days, it could be an indication of a deviated septum (i.e. the septum is crooked/off-centre), which may need to be corrected surgically.
Nosebleeds (epistaxis)
Nosebleeds are common and can usually be stopped using the technique of applying pressure to the fleshy part of the nose for 15 minutes.
Cerebrospinal fluid leak
A rare complication of nasal trauma can occur when the nasal bones are pushed into the face and cause the thin cribiform plate at the roof of the nose to fracture, resulting in the cerebrospinal fluid that bathes the brain leaking out. Small fractures will seal automatically with conservative management, usually within two weeks. Antibiotics will only be given if an infection is found to be present. If fluid leaks, more treatment may be required.
Loss of sense of smell (anosmia)
In other rare cases, the smell organ in the roof of the nose may be damaged, causing loss of the sense of smell, which very rarely returns.