Positive Babinski sign manifestation
Sep 30, 2022
Source: Cainiu Health
Dr. Lin Yunfei
Introduction
Patients with a positive Babinski sign will exhibit dorsiflexion of the big toe, fanning of the other four toes, and a sensation of pricking. In severe cases, the four toes may neither flex upward nor fan out. Patients with alcohol intoxication or deep coma may develop choreiform movements due to hyperalgesia, leading to damage of the pyramidal tract function.
Generally, a positive Babinski sign is a pathological reflex indicating damage to the pyramidal tract function in the patient. The main manifestation of a positive Babinski sign is dorsiflexion of the big toe and fanning out of the other four toes during examination.
The medical test for the Babinski sign typically involves gently stroking the outer side of the patient's sole with a cotton swab or wooden stick, starting from the heel forward toward the base of the little toe, then turning inward toward the area beneath the big toe. Patients with a positive Babinski sign will show dorsiflexion of the big toe, fanning of the other four toes, and may simultaneously experience a pricking sensation.
In severe cases, the four toes may neither flex upward nor fan out. Patients with alcohol intoxication or deep coma may develop dance-like movements due to hyperalgesia, leading to pyramidal tract damage. Specific symptoms vary depending on individual patient conditions and are not absolute.
A positive Babinski sign primarily indicates lesions in the pyramidal tract and is commonly seen in conditions such as cerebral infarction, cerebral hemorrhage, multiple sclerosis, central nervous system infections, intracranial tumors, myelitis, syringomyelia, spinal cord-type cervical spondylosis, spinal cord trauma, spinal cord tumors, motor neuron disease, and cerebral palsy.
Patients should follow medical advice regarding medication to nourish and repair brain function and pay appropriate attention to limb movement. It is recommended to eat foods rich in protein and vitamins, while avoiding greasy and raw-cold foods.
