Investigating the Association Between Pain and Depression

Pain and depression are interrelated, forming a complex and bidirectional relationship that can significantly affect patients lives. This article aims to collect existing studies' results on the association between pain and depression, summarize current treatment for pain-induced depression, and identify its insufficiency and inadequacy, thereby pointing out a suggestive development direction in the future. The biological pathways of pain, depression and their comorbidity are also discussed in the essay. The research was conducted in a literature research and review method.