Used Diaper is a trinket in The Binding of Isaac, added in the Afterbirth+ DLC.

Grants a 15% chance to trigger the Skatole effect in each room, making certain fly enemies harmless or less dangerous.

The chance for this to occur is seeded per room.

This page shows information as of the latest Repentance release.
To see latest up-to date information about this trinket for the new Repentance+ (Online Co-op) DLC, check this page instead.

The following special synergies and interactions for Used Diaper have been documented.

* Note that not all possible synergies and interactions are listed here.

• Check out the trinket description on the external Isaac Wiki.