Different Types of Pain : Anesthesia. Hyperaesthesia, Paraesthesia, Allodynia, etc.

TAXONOMY OF PAIN
Terminology Description
Anesthesia dolorosa
  • It is a paradoxic pain in the region of sensory loss following an injury to a cranial nerve or a nerve root.
  • It is seen most often after surgical treatment of the trigeminal ganglion or root for neuralgia.
Allodynia
  • Pain due to non painful stimulus that does not normally produce pain.
Hyperalgesia
  • Increased response to a stimulus that is usually painful
Hyperaesthesia
  • Increased sensitivity to stimulation and does not imply a painful sensation.
  • Hyperalgesia is a special case of hyperaesthesia.
Hypoaesthesia
  • Decreased sensitivity to stimulation
Hypoalgesia
  • A special case of hypoaesthesia in which pain response to normally painful stimuli is diminished.
Paraesthesia
  • Abnormal (but not unpleasant) sensation
Dysesthesia
  • Unpleasant abnormal sensation
Hyperpathia
  • It is painful syndrome with increased reaction to a stimulus and an increased threshold; faulty identification and localization of stimulus; delayed and radiating sensations and after sensation may be present.
Causalgia It is a syndrome of:
  • Burning Pain,
  • Allodynia, and
  • Hyperpathia after a traumatic nerve lesion.
Phantom pain
  • Described as perceptions that an individual experiences relating to a limb or an organ that is not physically part of the body. For example, Limb loss as a result of either amputation following surgery or congenital absence of limb.
  • Phantom limb pain is the feeling of pain in an absent limb or a portion of a limb.

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