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Leech.pngOld-gen console version and Nintendo 3DS version
Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
AI TypeWorm AI
Max Life60/96/144
KB Resist100%
Immune toConfused

The Leech is a worm-like enemy spawned by the Wall of Flesh Boss. Multiple Leeches are released from the Wall's mouth, first in groups of 3-4. The groups grow larger and more frequent as the boss takes damage. The Wall of Flesh will eventually release them in a continuous stream.


Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
2 values: Pre-Hardmode › Hardmode
3 values: Pre-Hardmode › Hardmode › Post-Plantera

Leeches consist of 10-14 segments in total.

NPC ID Type Damage Defense
117 Leech Head.png Leech Head 26/52/78 2
118 Leech Body.png Leech Body 22/44/66 6
119 Leech Tail.png Leech Tail 18/36/54 10


  • Leeches don't despawn once the Wall of Flesh has been defeated.
  • Unlike most other burrowing enemies, Leeches do not create a digging noise, nor produce particles while digging.


  • In normal mode, they will always drop a Heart when they die, but in Expert Mode, the chances of a Leech dropping a Heart get reduced to a fifth. Preparing a platform before the fight can help you collect their dropped hearts.


  • The BestiaryBestiary entry for the Leech: "A worm-like parasite spit forth from the Wall of Flesh, filled with the lifeblood of its host. This blood has healing properties."
  • The last part of its Bestiary entry refers to how it will always / often drop a Heart upon death.