What is the Babinski Reflex?

[Guest guest]

What is the Babinski Reflex?

Marilyn in TN

************

Hi Marilyn:

This is what I found on Babinski Reflex.

Hugs Vera

Babinski's reflex

Contents of this page:

Alternative names

Definition

Considerations

Common causes

Home care

Call your health care provider if

What to expect

Alternative names

Reflex - Babinski's; Extensor plantar reflex Definition Return to top

The Babinski's reflex is where the great toe flexes toward the top of the foot and the other toes fan out when the sole of the foot is firmly stroked. This is normal in younger children, but abnormal after about 2 years old. Considerations Return to top

Reflexes are specific, predictable, involuntary responses to a particular type of stimulation.

The Babinski's reflex is one of the infantile reflexes. It is normal in children under 2 years old, but it disappears as the child ages and the nervous system becomes more developed.

In people more than 2 years old, the presence of a Babinski's reflex indicates damage to the nerve paths connecting the spinal cord and the brain (the corticospinal tract). Because this tract is right-sided and left-sided, a Babinski's reflex can occur on one side or on both sides.

An abnormal Babinski's reflex can be temporary or permanent.

Common causes Return to top

Generalized tonic-clonic seizure (there may be a temporary Babinski's reflex for a short time after a seizure)

Amyotrophic lateral sclerosis

Brain tumor (if it occurs in the corticospinal tract or the cerebellum)

Familial periodic paralysis

Friedreich's ataxia

Head injury

Hepatic encephalopathy

Meningitis

Multiple sclerosis

Pernicious anemia

Poliomyelitis (some forms)

Rabies

Spinal cord injury

Spinal cord tumor

Stroke

Syringomyelia

Tuberculosis (when it affects the spine)Home care Return to top

Typically, a person (older than an infant) who has a Babinski's reflex will also have incoordination, weakness, and difficulty with muscle control. Safety is important to prevent the risk of injury. The person may need assistance with activity, and the environment should be kept free of hazards. Call your health care provider if Return to top

Note: This finding is usually discovered by the health care provider, and the affected person usually was not aware of its presence. What to expect Return to top

The medical history will be obtained and a physical examination performed.

Medical history questions (i.e., Have any other unusual symptoms been noted before this reflex developed?) will be asked documenting this reflex in detail.

The physical examination will probably include a complete nervous system (neurologic) examination.

Diagnostic testing may include:

MRI scan of the head or MRI scan of the spine

Angiography of the head

Somatosensory evoked potentials

Lumbar puncture and analysis of the cerebrospinal fluidAfter seeing your health care provider, you may want to add a diagnosis related to a Babinski's reflex to your personal medical record.

Update Date: 07/14/01