Fistula Portrait
Character Information
Character Type Boss
Floors of


The Cellar
First Stage Health 60
Second Stage Health 15
Third Stage Health 8
Items Dropped Boss Pool

Fistula is an enemy in The Binding of Isaac: Rebirth that appears as a Boss on The Cellar floor.


Fisutula starts in as a large ball of flesh that bounces around the room. After it is killed, it will split into four medium Fisulas. After one of those is killed, that medium Fistula will split into two small Fistulas. After one of those small ones is killed, it will spawn a Charger if not over a hole.