Measurements on a Pain Scale are very important. They are currently the only gauge in which the medical field can address situation. In order to get the proper treatment, identifying your pain level needs to be as accurate as possible.
0 Pain free.
1 Pain is very mild, barely noticeable. Most of the time you don't think about it.
2 Minor pain. Annoying and may have occasional stronger twinges.
3 Pain is noticeable and distracting, however, you can get used to it and adapt.
4 Moderate pain. If you are deeply involved in an activity, it can be ignored for a period of time, but is still distracting .
5 Moderately strong pain. It can't be ignored for more than a few minutes, but with effort you still can manage to work or participate in some social activities.
6 Moderately strong pain that interferes with normal daily activities. Difficulty concentrating.
7 Severe pain that dominates your senses and significantly limits your ability to perform normal daily activities or maintain social relationships. Interferes with sleep.
8 Intense pain. Physical activity is severely limited. Conversing requires great effort.
9 Excruciating pain. Unable to converse. Crying out and/or moaning uncontrollably.
10 Unspeakable pain. Bedridden and possibly delirious. Very few people will ever experience this level of pain.