Health Encyclopedia - Symptoms
Babinski reflex is one of the reflexes that occurs in infants. Reflexes 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.
This reflex is normal in children up to 2 years old. It disappears as the child gets older. It may disappear as early as 12 months.
Reflex - Babinski; Extensor plantar reflex; Babinski sign
When the Babinski reflex is present in a child older than 2 years or in an adult, it is often a sign of a brain or nervous system disorder. Disorders may include:
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Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.