A septum piercing may bleed more than pierced nares. You could also form a hematoma, a swollen bruise that can become infected or disfigure your face.
In respect to this, what nose shape is best for a septum piercing?
Septum Piercing
This piercing type goes through the narrow strip of skin on the septum just before the cartilage starts. It works best on noses with wider septums, as more narrow septums may not provide much of a surface area for the piercing.