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Neurologic deficit

Neurologic deficit


A neurologic deficit refers to abnormal function of a body area. This altered function is due to injury of the brain, spinal cord, muscles, or nerves.

Examples include:

  • Abnormal reflexes
  • Inability to speak
  • Decreased sensation
  • Loss of balance
  • Mental function problems, such as memory loss
  • Vision changes
  • Walking problems
  • Weakness of the arms or legs



Deluca GC, Griggs RC. Approach to the patient with neurologic disease. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 368.

Klatt EC. The central nervous system. In: Klatt EC, ed. Robbins and Cotran Atlas of Pathology. 4th ed. Philadelphia, PA: Elsevier; 2021:chap 19.

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          Review Date: 1/28/2021

          Reviewed By: Evelyn O. Berman, MD, Assistant Professor of Neurology and Pediatrics at University of Rochester, Rochester, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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