Binding of Isaac: Rebirth Wiki

Ring Worm is a trinket.


  • Isaac's tears travel in a high-speed spiral pattern.
  • Added in Repentance Also grants +0.47 Tears and spectral tears.


  • The tear pattern slightly increases Isaac's effective range.
  • Removed in Repentance The trinket has no effect on any non-tear based attack, such as Brimstone Brimstone or Mom's Knife Mom's Knife.
    • Added in Repentance The trinket now affects all tear/non-tear modifiers, with the only exceptions being Dr. Fetus Dr. Fetus, Epic Fetus Epic Fetus and Tech X Tech X, which don't work.


  • Added in Afterbirth †Backstabber Backstabber: Due to the unusual tear travel, Ring Worm may be used to hit enemies in the back, without having the need to be placed behind them.

In-game Footage[]



  • The bullet pattern might be a reference to a power-up in the NES game Uncle Fester's Quest.
  • Ring worm (or Dermatophytosis) is a fungal infection very common in children and teenagers. It involves scaly rings on the skin of the scalp, chest, arms, stomach and other places, and is not caused by any sort of worm despite its name.