The attached video delivers an easily understandible division of pain.The knowledge of this video will help you to diagnose the right type of pain, and treat it likewise. Timeline: 00:03 introduction 00:43 categories of pain 01:12 adaptive versus pathological 02:08 nociceptive pain and inflammatory pain 03:01 Division of nociceptive pain 03:50 superficial versus deep somatic pain 04:42 pathological pain and its division