Pain Scales, The Mankoski Pain Scale, and why to use it.

You know what are terrible? Almost all of the pain scales I have found, save 1.
Also, there are a lot of them: https://en.wikipedia.org/wiki/Pain_scale

Here is an example: What exactly is the worst pain imaginable? How is this helpful?
painscale

Mankoski Pain Scale

Copyright © 1995, 1996, 1997 Andrea Mankoski. All rights reserved. Right to copy with attribution freely granted.

0
Pain Free No medication needed.
1
Very minor annoyance - occasional minor twinges. No medication needed.
2
Minor annoyance - occasional strong twinges. No medication needed.
3
Annoying enough to be distracting Mild painkillers are effective. (Aspirin, Ibuprofen.)
4
Can be ignored if you are really involved in your work, but still distracting. Mild painkillers relieve pain for 3-4 hours.
5
Can't be ignored for more than 30 minutes. Mild painkillers reduce pain for 3-4 hours.
6
Can't be ignored for any length of time, but you can still go to work and participate in social activities. Stronger painkillers (Codeine, Vicodin) reduce pain for 3-4 hours.
7
Makes it difficult to concentrate, interferes with sleep You can still function with effort. Stronger painkillers are only partially effective. Strongest painkillers relieve pain (Oxycontin, Morphine)
8
Physical activity severely limited. You can read and converse with effort. Nausea and dizziness set in as factors of pain. Stronger painkillers are minimally effective. Strongest painkillers reduce pain for 3-4 hours.
9
Unable to speak. Crying out or moaning uncontrollably - near delirium. Strongest painkillers are only partially effective.
10
Unconscious. Pain makes you pass out. Strongest painkillers are only partially effective.

What do I like about it? It's hard to bs. It's hard to say your pain is not so bad, or worse than it is. It doesn't really relate to how you emotionally react to the pain, it's just.. This is what it is.

Here is a good one that gets at much the same thing, but uses many more words:
https://lane.stanford.edu/portals/cvicu/HCP_Neuro_Tab_4/0-10_Pain_Scale…