Fistula surgery with excision (only for low, superficial fistulas)

The simplest and most commonly used method is to cut or cut up a fistula.
It is only recommended for superficial fistulas, where it is the obvious choice.
It is important to note that this procedure always involves cutting the lower part of the internal sphincter, below the fistula.
In addition to superficial fistulas, it can also be used for low fistulas through the muscle.
The procedure may result in some degree of deformity (so-called keyhole anus).
The fistula is cut sharply using a scalpel or an electric cutting device.