The Womb

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Womb.png

The Womb is the fourth chapter of the game, unlocked after beating Mom. From the Womb onwards, all damage taken will do a full heart of damage to the player's health (unless the player has The Wafer), regardless of the source. Like The Depths/Necropolis, the Womb's second floor has a preset boss that will always be fought: Mom's Heart initially, and It Lives after beating Mom's Heart 11 times.

The Womb's alternate floor is Utero, which, unlike alternate floors before it, does not need to be unlocked.

DLC Indicator.png The Womb has another alternate floor, the Scarred Womb, which, like other alternate floors in Afterbirth, does not need to be unlocked.

Monsters[edit | edit source]

Monsters Description
Baby
Baby.png
Slowly floats towards Isaac and fires blood shots. Occasionally teleports and reappears elsewhere.
Angelic Baby
Angelic Baby.png
Slowly floats towards Isaac and fires three spread shots. Occasionally teleports and reappears elsewhere.
Boil
Boil.png
Stationary enemy that decreases in size when hit, but regenerates to its full size until fully destroyed. Fires multiple short-ranged blood projectiles in random directions when fully swollen.
Walking Boil
Walking Boil.png
Does not shrink or regenerate. Walks around aimlessly and fires multiple short-ranged blood projectiles in random directions.
Bony
Bony.png
Wanders around the room and throws a bone at Isaac when he is in sight.
Death's Head
Death's Head.png
Invulnerable enemy that moves diagonally around the room, dealing contact damage. Dies when the room is cleared.
Brain
Brain.png
Slowly crawls around the room, leaving a trail of red creep.
MemBrain
MemBrain.png
Slowly moves around the room, occasionally hopping and firing 8 large blood shots in all directions. Splits into 2 Brains upon death.
Charger
Charger.png
Slowly moves around the room, charging at Isaac when he gets in its line of sight.
Clotty
Clotty.png
Randomly wanders around the room, firing 4 blood shots in the cardinal directions.
Dip
Dip.png
Slowly dashes in random directions, dealing contact damage.
Squirt
Squirt.png
Dashes towards the player and deals contact damage. Spawns 2 Dips upon death.
Dinga
Dinga.png
Spawns Dips and shoots brown shots in 8 directions. Spawns 2 Squirts on death.
Dople
Dople.png
Mirrors Isaac's movements and fires blood shots at the same time as Isaac. Can be damaged by spikes.
Embryo
Embryo.png
Aimlessly hops around the room, dealing contact damage.
Eye
Eye.png
Slowly turns towards Isaac and fires a laser at Isaac if he stands still or is too slow.
Bloodshot Eye
Bloodshot Eye.png
Slowly turns towards Isaac and fires a Brimstone beam at Isaac if he stands still or is too slow.
Pale Fatty
Pale Fatty.png
Slowly walks towards Isaac. Occasionally farts and shoots blood shots in 6 directions. Can turn into a Blubber upon death.
Fat Sack
Fat Sack.png
Slowly walks towards Isaac. Occasionally leaps off-screen and attempts to land on Isaac, leaving a puddle of creep and shooting blood shots in 6 directions where it lands. Can turn into a Blubber upon death.
Blubber
Blubber.png
Walks around aimlessly and randomly spews blood around itself. Can turn into a Half Sack when killed.
Half Sack
Half Sack.png
Wanders around aimlessly and leaves a trail of red creep.
Black Fly
Black Fly.png
Tiny black fly with neutral AI. Does not hurt Isaac upon touch.
Attack Fly
Attack Fly.png
Red fly that follows Isaac and deals touch damage.
Moter
Moter.png
Follows Isaac, similar to Attack Flies. Splits into 2 Attack Flies upon death.
Full Fly
Full Fly.png
Flies toward Isaac erratically, dealing touch damage. Splits into 6 directional shots upon death.
Red Boom Fly
Red Boom Fly.png
Flies around the room diagonally, dealing touch damage and exploding into 6 blood shots upon death.
Sucker
Sucker.png
Flies slowly towards Isaac, exploding into 4 shots in the cardinal directions upon death.
Spit
Spit.png
Flies slowly towards Isaac, firing an Ipecac shot upon death.
Fred
Fred.png
Hops out of the ground and burrows elsewhere, firing 4 blood shots in the ordinal directions. Occasionally fires red Ipecac shots at Isaac.
Globin
Globin.png
Chases Isaac, dealing a full heart of contact damage. Upon taking enough damage, it collapses into a pile of goo, which can be killed. Will regenerate after a short period of time if not killed quickly.
Gazing Globin
Gazing Globin.png
Quickly chases Isaac, dealing a full heart of contact damage. Upon taking enough damage, it collapses into a pile of goo, which can be killed. Will regenerate after a short period of time if not killed quickly.
Grub
Grub.png
Erratically moves around the room like Larry Jr. and charges at Isaac when he gets within its line of sight. Spawns random types of maggots upon death, one for each of its segments.
Gurglings
Gurglings.png
Charges towards Isaac when he lines up with them, leaving a trail of creep and shooting 6 blood shots.
Guts
Guts.png
Attaches itself to a wall or obstacle and rolls around it.
Mama Guts
Mama Guts.png
Slowly moves around the room, occasionally hopping and firing 8 large blood shots in all directions. Splits into 2 Guts upon death.
Homunculus
Homunculus.png
Starts attached to the wall. After a while, it detaches, shooting 6 blood shots and chasing Isaac. If it dies while still attached to the wall, it leaves a puddle of creep.
Host
Host.png
Stationary enemy that is normally invulnerable. Raises its head up when Isaac gets close, revealing a fleshy stem that can be damaged. Upon raising its head, it will fire 3 blood shots and lower its head again.
Red Host
Red Host.png
Stationary enemy that can be damaged even when its head is lowered. Fire 5 spread blood shots when it raises its head.
Walking Red Host
Walking Red Host.png
Acts like the Red Host, but follows Isaac and deals contact damage.
Leech
Leech.png
Quickly charges towards Isaac when he gets in its line of sight.
Lump
Lump.png
Fires 3 spread blood shots at Isaac when he gets in its line of sight. Will burrow underground and reappear elsewhere after firing
Maw
Maw.png
Slowly floats towards Isaac, firing blood shots.
Mom's Hand
Mom's Hand.png
Falls from the ceiling. If it lands on Isaac, it deals damage and teleports the player back to the spawn room of the floor. Entering a room containing Mom's Hand will warn the player with Mom's laugh.
Mr. Maw
Mr Maw.png
Walks towards Isaac and attacks by launching its head towards Isaac. Turns into a Maw or Pacer upon death depending on the killed body segment.
Swinger
Swinger.png
Slowly moves towards Isaac as its head swings around its base. Upon death, spawns a Maw or a Globin depending on which part is killed.
Nerve Ending
Nerve Ending.png
Static enemy which acts as a meat shield.
Oob
Oob.png
When Isaac lines up with it horizontally, it charges across the room once. When Isaac is not horizontal to it, it spawns Brains.
Para-Bite
Para-Bite.png
Moves towards Isaac, dealing contact damage. Can burrow underground and reappear elsewhere.
Cod Worm
Cod Worm.png
Stationary enemy that hides in a shell and spews blood if shot at. Only vulnerable when it pops its head out.
Rotty
Rotty.png
Slowly walks towards Isaac, leaving short-lasting red creep behind itself. Spawns a Bony or two Attack Flies upon death.
Crazy Long Legs
Crazy Long Legs.png
Chases Isaac, dealing touch damage. Occasionally stops to spit blood shots in 8 directions.
Small Crazy Long Legs
Small Crazy Long Legs.png
Chases Isaac, dealing touch damage. Occasionally stops to spit blood shots diagonally in 4 directions.
Wall Creep
Wall Creep.png
Crawls along walls to try to line up with Isaac and shoots three blood shots in a line.
Blind Creep
Blind Creep.png
Randomly crawls along walls and shoots three spread blood shots.
Rage Creep
Rage Creep.png
Crawls along walls to try to line up with Isaac and shoots a Brimstone laser.
Tumor
Tumor.png
Moves around the room diagonally, occasionally firing 6 shots. Fires more often upon getting damaged.
Vis
Vis.png
Charges and fires a Brimstone laser when Isaac gets in its line of sight.
Double Vis
Double Vis.png
Charges and fires a Brimstone laser which fires from both sides when Isaac gets in its line of sight.
Chubber
Chubber.png
Fires a Charger that deals one heart of damage when Isaac gets in its line of sight. The Charger is invulnerable, blocks Isaac's tears, and has limited range.
Gaping Maw
Gaping Maw.png
Stationary and invulnerable monster that sucks Isaac towards it, along with Isaac's tears and enemy projectiles.
Stone Eye
Stone Eye.png
Stationary and invulnerable monster that constantly rotates and fires a flickering Technology laser. Stops firing when the room is cleared.
Mini-Bosses

Bosses[edit | edit source]

The Womb I

Boss Mr. Fred.png
Boss Scolex.png
Boss Teratoma.png
Mr. Fred Scolex Teratoma
Boss Mama Gurdy.png
Boss The Fallen.png
Boss Death.png
Boss Conquest.png
Boss The Bloat.png
Boss Lokii.png
Mama Gurdy The Fallen Death Conquest The Bloat Lokii

Double Trouble

Boss The Cage.png
Boss Gurdy.png
Boss The Fallen.png
Boss The Gate.png
(Double Trouble)

The Cage

(Double Trouble)

Gurdy

(Double Trouble)

The Fallen

(Double Trouble)

The Gate

The Womb II

Boss Mom's Heart.png
Boss It Lives.png
Mom's Heart It Lives

Notes[edit | edit source]

Unlockable Achievements[edit | edit source]

  • Mama's Boy Mama's Boy - Beat chapter 4 without taking damage.

Music[edit | edit source]

  • The music for the womb is titled Viscera. The term viscera represents the internal organs in the body. The Utero shares this same track.
  • The music heard during the fight against Mom's Heart/It Lives is called Ventricide. Ventricide is a word made up of the Latin word for Heart, Ventricle, and the suffix -cide, which denotes the act of killing.
    • This has been confirmed by Edmund when he said it means something like "the killing of the heart". This is in theme with other similar boss tracks such as Matricide, Hericide, and Infanticide.

Binding of Isaac: Rebirth Music


SmallIsaac.pngChaptersSmallIsaac.png
Chapter 1 Chapter 2 Chapter 3 Chapter 4 Optional Chapter 5 Chapter 6 Endgame
Normal Mode
&
Hard mode
Stage basement.png Stage caves.png Stage depths.png Stage womb.png Stage sheol.png
Sheol


Stage cathedral.png
Cathedral
Stage dark room.png
Dark Room


Stage chest.png
The Chest
The Basement The Caves The Depths The Womb
DLC Indicator.png Afterbirth† Indicator.png
Stage cellar.png Stage catacombs.png Stage necropolis.png Stage utero.png Stage blue womb.png Stage the void.png
The Cellar The Catacombs Necropolis Utero Blue Womb The Void
DLC Indicator.png DLC Indicator.png DLC Indicator.png DLC Indicator.png
Stage burning basement.png Stage flooded caves.png Stage dank depths.png Stage scarred womb.png
Burning Basement Flooded Caves Dank Depths Scarred Womb
DLC Indicator.png
Greed Mode
&
Afterbirth† Indicator.png
Greedier Mode
DLC Indicator.png DLC Indicator.png
Stage basement.png Stage caves.png Stage depths.png Stage womb.png Stage sheol.png Stage chest.png Stage Ultra Greed.png
The Basement The Caves The Depths The Womb Sheol The Shop Ultra Greed


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