Psychogenic pain is pain that is caused, increased, or prolonged by mental, emotional, or behavioral factors, without evidence of physical injury or illness.
Headache, back pain, or stomach pain are some of the most common types of psychogenic pain. It is commonly accompanied by social rejection, broken heart, grief, lovesickness, regret, or other such emotional events. This pain can also be caused by psychological disorders such as anxiety and depression, which can affect the onset and severity of pain experienced.
The International Association for the Study of Pain (IASP) defines pain as "an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage." This definition was revised for the first time since 1979 in 2020, and was officially published in the ICD-11. The IASP broadens this definition to include psychogenic pain with the following points:
Furthermore, the ICD-11 removed the previous classification for psychogenic pain (persistent somatoform pain disorder) from the handbook in favor of understanding pain as a combination of physical and psychosocial factors. This is reflected in the definition for chronic primary pain, which acknowledges that pain stems from multiple personal and environmental factors and should be diagnosed "independently of identified biological or psychological contributors."
Some specialists believe that psychogenic chronic pain exists as a protective distraction to keep dangerous repressed emotions such as anger or rage unconscious. It remains controversial, however, that chronic pain might arise purely from emotional causes.Stephen Tyrer, Psychosomatic pain, The British Journal of Psychiatry (2006) 188: 91-93
To fill the new gap in terminology left by the declining use of psychogenic pain, the term "nociplastic pain" was coined in 2016. Nociplastic pain is defined as chronic pain that cannot be classified as Nociceptive pain (pain caused by the activation of nociceptors) or Neuropathic pain (pain caused by damage to the nervous system). Nociplastic pain is functionally defined in one article as "pain arising from the altered function of pain-related sensory pathways in the periphery and CNS (Central Nervous System)," and, unlike psychogenic pain, can be diagnosed in conjunction with other types of pain.
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