<p>This is a common trope in anime. Many examples of it can be seen on Dragon Ball with Master Roshi:</p>

<p><a href="https://i.sstatic.net/fYHuW.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/fYHuW.png" alt="Master Roshi&#39;s nose bleeding"></a></p>

<p>Source: <code>https://www.youtube.com/watch?v=y0-Ep3UI2SI</code> [potentially suggestive content]</p>

<p>According to <a href="https://www.animenewsnetwork.com/interest/2010-07-17/anime-physics/nosebleeds" rel="nofollow noreferrer">AnimeNewsNetwork</a>, it is a long-standing Japanese folk belief.</p>

CC BY-SA 3.0
2017-06-22T13:29:22.653Z
As for why it happens, I'd assume it's another anime exaggeration to show the increased blood flow to "other" areas.
VoidSixx
CC BY-SA 3.0
2017-06-18T02:27:43.570Z
2017-06-18T02:27:43.570Z
ave
<p>In several episodes of Assassination Classroom (animated version), characters develop spontaneous nosebleeds seemingly in response to becoming sexually aroused.  This occurs with a number of male characters, though I can recall at least one instance where it happens to a female character as well.  </p>

<p>Here's an example on Youtube:</p>

<p><a href="https://www.youtube.com/watch?v=sKNRnL6E64Q" rel="nofollow noreferrer">https://www.youtube.com/watch?v=sKNRnL6E64Q</a></p>

<p>Is this a common trope in anime, or something that's unique to Assassination Classroom?  And in either case, is there any rational explanation behind using this seemingly bizarre method of depicting arousal?</p>

<assassination-classroom>
Use of nosebleeds to denote arousal?
# Use of nosebleeds to denote arousal?
Posted by: username_0 on 2017-06-18
In several episodes of Assassination Classroom (animated version), characters develop spontaneous nosebleeds seemingly in response to becoming sexually aroused. This occurs with a number of male characters, though I can recall at least one instance where it happens to a female character as well.

Here's an example on Youtube:

<https://www.youtube.com/watch?v=sKNRnL6E64Q>

Is this a common trope in anime, or something that's unique to Assassination Classroom? And in either case, is there any rational explanation behind using this seemingly bizarre method of depicting arousal?
**Tags:** assassination-classroom
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## 1 answers
### Answer by username_1 on 2017-06-18. Score: 2 | Accepted answer
This is a common trope in anime. Many examples of it can be seen on Dragon Ball with Master Roshi:

[![Master Roshi's nose bleeding](https://i.sstatic.net/fYHuW.png)](https://i.sstatic.net/fYHuW.png)

Source: `https://www.youtube.com/watch?v=y0-Ep3UI2SI` [potentially suggestive content]

According to [AnimeNewsNetwork](https://www.animenewsnetwork.com/interest/2010-07-17/anime-physics/nosebleeds), it is a long-standing Japanese folk belief.
> **Comments:**
> **username_2** (2017-06-22): As for why it happens, I'd assume it's another anime exaggeration to show the increased blood flow to "other" areas.  
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