Used Diaper
TrinketAfterbirth+Unlocked
How do you unlock Used Diaper?
Verified starting unlockSource data confirms that no unlock is required.
Grants the Skatole effect in some rooms. [Repentance+] Spawns a blue fly when entering a new combat room.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Used Diaper leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13