Pain: An unpleasant sensation induced by noxious stimuli and generally received by specialized nerve endings.

Synonym: ache, migratory pain, crushing pain, burning pain, splitting pain, radiating pain, physical suffering.

Terms Related to Pain

• Pain Receptor

  Peripheral receptors for pain. Nociceptors include receptors which are sensitive to painful mechanical stimuli, extreme heat or cold, and chemical stimuli. All nociceptors are free ...

• Pain Sensation Diminished

  Disorders of sensory information received from superficial and deep regions of the body. The somatosensory system conveys neural impulses which pertain to proprioception, tactile sensation, ...

• Congenital Pain Insensitivity

  A syndrome characterized by indifference to PAIN despite the ability to distinguish noxious from nonnoxious stimuli. Absent corneal reflexes and MENTAL RETARDATION may be associated. ...

• Type I Complex Regional Pain Syndrome

  A syndrome characterized by severe burning pain in an extremity accompanied by sudomotor, vasomotor, and trophic changes in bone without an associated specific nerve injury. ...

• Nociceptor

  Peripheral receptors for pain. Nociceptors include receptors which are sensitive to painful mechanical stimuli, extreme heat or cold, and chemical stimuli. All nociceptors are free ...

• Sensory Nerve Ending

  Specialized neurons or parts of neurons which transduce sensory information and relay it centrally. Included are receptors for stimuli outside the body (exteroceptors) as well ...

• Pinprick Sensation Diminished

  Disorders of sensory information received from superficial and deep regions of the body. The somatosensory system conveys neural impulses which pertain to proprioception, tactile sensation, ...

• Nerve Ending

  Specialized terminations of peripheral neurons. Nerve endings include NEUROEFFECTOR JUNCTION(s) by which neurons activate target organs and sensory receptors (see RECEPTORS, SENSORY) which transduce information ...

• Light Touch Sensation Impairment

  Disorders of sensory information received from superficial and deep regions of the body. The somatosensory system conveys neural impulses which pertain to proprioception, tactile sensation, ...

• Paroxysmal Nerve Pain

  Intense or aching pain that occurs along the course or distribution of a peripheral or cranial nerve.