<p>The kakugan are red due to the activation of <a href="http://tokyoghoul.wikia.com/wiki/Rc_cells">RC cells</a> in the ghoul's body. The RC cells are present in their bodies are when they activate them to use their kagune of due to them becoming excited, the kakugan activates as well.</p>

<blockquote>
  <p>A kakugan is an influence of activated Rc cells.</p>
</blockquote>

<p>The kakugan are red as the RC cells are red in colour.</p>

<blockquote>
  <p>Rc cells (Red Child Cells) are certain cells that exist only in the story of Tokyo Ghoul. The origin of the name comes from how each individual cell looks like a curled up foetus.</p>
</blockquote>

CC BY-SA 3.0
2015-12-14T15:28:39.710Z
2015-12-14T15:28:39.710Z
Astral Sea
<p>Is there a particular reason why ghouls' eyes are red? (called 'kakugan' based on my research).</p>

<p><a href="https://i.sstatic.net/ppYTg.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/ppYTg.jpg" alt="tokyo-ghoul-touka-kagune"></a></p>

<p>There might be a reason provided by the writer, which I cannot research as it may only be available in Japanese. (I am thinking that it may be due to the color of blood?)</p>

<tokyo-ghoul>
Why are ghouls' eyes red?
# Why are ghouls' eyes red?
Posted by: username_0 on 2015-12-14
Is there a particular reason why ghouls' eyes are red? (called 'kakugan' based on my research).

[![tokyo-ghoul-touka-kagune](https://i.sstatic.net/ppYTg.jpg)](https://i.sstatic.net/ppYTg.jpg)

There might be a reason provided by the writer, which I cannot research as it may only be available in Japanese. (I am thinking that it may be due to the color of blood?)
**Tags:** tokyo-ghoul
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## 1 answers
### Answer by username_1 on 2015-12-14. Score: 6 | Accepted answer
The kakugan are red due to the activation of [RC cells](http://tokyoghoul.wikia.com/wiki/Rc_cells) in the ghoul's body. The RC cells are present in their bodies are when they activate them to use their kagune of due to them becoming excited, the kakugan activates as well.

> A kakugan is an influence of activated Rc cells.

The kakugan are red as the RC cells are red in colour.

> Rc cells (Red Child Cells) are certain cells that exist only in the story of Tokyo Ghoul. The origin of the name comes from how each individual cell looks like a curled up foetus.
---
