• Abnormal cutaneous sensations of tingling, numbness, pressure, cold, and warmth that an individual experiences without the presence of a stimulus. It results from functional disturbances of sensory neurons. Causes include peripheral vascular disease, peripheral neuropathy, and nerve damage.
  NCI
  U.S. National Cancer Institute, 2021
• Abnormal sensations such as tingling, pricking, or numbness of the skin with no apparent physical cause.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2025
• Abnormal spontaneous tactile sensation, such as a burning, tingling or pins-and-needles sensation.
  Sadock's Comprehensive Glossary of Psychiatry and Psychology
  BJ Sadock Titles Press, 2012
• Abnormal touch sensations, such as burning or prickling, that occur without an outside stimulus.
  U.S. FDA Glossary
  U.S. Food & Drug Administration, 2021
• Subjective cutaneous sensations (e.g., cold, warmth, tingling, pressure, etc.) that are experienced spontaneously in the absence of stimulation.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2025
• A disorder characterized by functional disturbances of sensory neurons resulting in abnormal cutaneous sensations of tingling, numbness, pressure, cold, and/or warmth.
  Common Terminology Criteria for Adverse Events
  U.S. National Institutes of Health, 2021