A hematoma is a collection of blood that occurs in tissue that separates 2 similar structures. A hematoma of the nasal septum refers to blood in the wall separating the 2 nostrils of the nose.
Septal hematoma of the nose is a swelling or collection of blood, usually clotted blood, that occurs in the wall that separates the nostrils. It can be the result of trauma, bleeding disorders, disease, or drug use.
Most hematomas of the nasal septum occur as a result of trauma from being punched or hit in the nose. Other causes include: