Babinski reflex
Reflex - Babinski; Extensor plantar reflex; Babinski signReflexes are responses that occur when the body receives a certain stimulus. The Babinski reflex occurs after the sole of the foot has been firmly stroked. The big toe then moves upward or toward the top surface of the foot. The other toes fan out.
Babinski reflex is one of the normal reflexes in infants and in children up to 2 years old. It disappears as the child gets older. It may disappear as early as 12 months. In adults, this reflex is not normal and often indicates a problem with the brain or spinal cord.
Causes
When the Babinski reflex is present in a child older than 2 years or in an adult, it is often a sign of a central nervous system disorder. The central nervous system includes the brain and spinal cord. Disorders may include:
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Amyotrophic lateral sclerosis (Lou Gehrig disease)
Amyotrophic lateral sclerosis
Amyotrophic lateral sclerosis, or ALS, is a disease of the nerve cells in the brain, brain stem and spinal cord that control voluntary muscle movemen...
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Brain tumor or injury
Brain tumor
A brain tumor is a group (mass) of abnormal cells that grow in the brain. This article focuses on primary brain tumors in children.
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Meningitis (infection of the membranes covering the brain and spinal cord)
Meningitis
Meningitis is an infection of the membranes covering the brain and spinal cord. This covering is called the meninges.
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Multiple sclerosis
Multiple sclerosis
Multiple sclerosis (MS) is an autoimmune disease that affects the brain and spinal cord (central nervous system).
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Spinal cord injury, defect, or tumor
Spinal cord injury
Spinal cord trauma is damage to the spinal cord. It may result from direct injury to the cord itself or indirectly from disease of the nearby bones,...
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Stroke
Stroke
A stroke occurs when blood flow to a part of the brain stops. A stroke is sometimes called a "brain attack. " If blood flow is cut off for longer th...
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References
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.
Mostoufi SA. Cervical radiculopathy. In: Frontera, WR, Silver JK, Rizzo TD Jr, eds. Essentials of Physical Medicine and Rehabilitation. 4th ed. Philadelphia, PA: Elsevier; 2019:chap 5.
Schor NF. Neurologic evaluation. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 608.
Review Date: 1/23/2023
Reviewed By: Joseph V. Campellone, MD, Department of Neurology, Cooper Medical School of Rowan University, Camden, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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