Chapter 4, usually I and II

Womb, Utero & Scarred Womb

The standard run loses its regular shopping and item-room rhythm, while ordinary damage becomes more punishing.

WombUteroScarred Womb
It Lives! in-game boss portrait
Route encounter: It Lives!

How you get here

Continue after Mom once the Womb route is unlocked.

Prepare before the checkpoint

  • Ordinary hits generally cost a full heart here; protection and damage-reduction exceptions still matter.
  • Regular Shops and Treasure Rooms do not naturally appear. Item effects such as Silver Dollar and Bloody Crown can add them.
  • Preserve health for the finale rather than expecting another normal shop to repair the build.

Related item rules: route tools and exceptions mentioned in this guide. Read each effect before relying on it.

Checkpoint and exit

Womb II normally ends with Mom's Heart or It Lives!, depending on progression. The Hush entrance has a standard 30-minute deadline.

Available beams, trapdoors and timed doors depend on progression and route conditions. Check the destination before taking the ending chest.

Random boss pools by variant

These counts come from the supplied boss-pool data. Pool membership and weight do not guarantee an encounter; fixed finales use route rules.

Womb: 6 listed entries

Scarred Womb: 7 listed entries

Choose a variant to compare its complete pool

Enemies worth recognizing

Learn the attack cue before entering a crowded room. These are selected preparation references for this floor family, rather than a complete spawn list.

Search the whole enemy reference