Weird kind of question.

[Red]

I am struggling to find an answer, so i decided to ask if someone knew:
Is there any kind of disease or sickness that makes wounds and injuries unable to heal at all, or at least, make the whole tissue regeneration process much slower?

There's logical explanation for this question: My novel.
So this is nothing personal or anything, i just thought is it necessary for me to create my own disease if there's nothing similiar related.