Blighted Ovum

Base HP	Stage HP
140	0

Ingame Appearance

Entity ID
79.2

Found In
Boss


Double Trouble

Degraded Boss

Dropped Items
Boss

Blighted Ovum is a boss that can appear in The Cellar.

Behavior

Blighted Ovum starts separated into two parts.

• Suture is invincible and slowly floats towards Isaac, firing a horizontal Brimstone shot whenever Isaac is to its left or right. Suture can not be killed and will die once Contusion does.
• Contusion constantly chases Isaac while leaving behind a trail of red creep, he periodically charges gaining speed. Unlike Gemini, he will not stop for a breath.

Gallery

• 

  Blighted Ovum's battle sprite before Repentance

• 

  Contusion's appearance before Repentance.

• 

  Suture's appearance before Repentance.

• 

  Blighted Ovum's in-game appearance.

• 

  Blighted Ovum as one of Delirium's forms.

• 

  Sketch of what appears to be an older concept of Blighted Ovum, along with other bosses that were to be added in the original The Binding of Isaac's Wrath of the Lamb DLC. Note that the behaviors mentioned in the concept art were never implemented in the original game onwards.

Notes

• Suture can be rerolled by the D10.
• Suture can be killed by Little Horn.

Trivia

• Blighted Ovum was added in the Wrath of the Lamb DLC for the original The Binding of Isaac.
• It is the posthumous version of Gemini.
• In medicine, a blighted ovum is a pregnancy in which the early pregnancy appears normal on an ultrasound scan, but later no visible embryo develops.
• This boss has skin on its body in the boss art, but it doesn't in-game.
  • This has been fixed with its updated splash art in The Binding of Isaac: Repentance.
• Blighted Ovum is the only boss in chapter 1 that is a posthumous version.
  • Gemini also shows up in chapter 1, which makes it one of only three bosses to have its posthumous version in the same chapter, the other cases being Polycephalus and Chub having The Stain and Carrion Queen, respectively, in chapter 2.
    • However, Blighted Ovum doesn't appear in the same environment as Gemini, who appears in The Basement while Blighted Ovum appears in The Cellar.
• If encountered in a Double Trouble boss fight, its Brimstone laser can damage the other boss.
• In Wrath of The Lamb, when Blighted Ovum was killed Contusion would shoot 8 extremely fast tears in the cardinal and ordinal directions, and after a short delay would be followed up by Suture who would explode similarly.
• In the Bestiary, Suture is referred to as "The Blighted Ovum Baby".