system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is disinfecting wounds painful?
gpt
There's two main reasons. First, the wound is sensitive, as that part of the body has been damaged and is screaming at your brain to start taking damage control steps.  Putting anything in an open wound is going to hurt some. Second,  the things we use to disinfect typically do that by killing biological material,  which will include the cells around and in your wound. So basically you're quarantining and nuking the area to make sure the infection doesn't spread.  The basic part of your brain that handles pain doesn't understand that, or the reasons for disinfection,  it just sees more damage to an already damaged part of the body,  and registers it as pain.