The Babinski sign is a very common and classic neurological examination. The patient is asked to lie flat on his back, and a bamboo or cotton swab is used to gently stroke the lateral aspect of the sole of the foot, from the heel forward to the heel of the little toe and the palm of the foot, until it turns medially, which normally results in plantar flexion of the toes downward. If the bunion is dorsiflexed and the other toes are scattered in a fan shape, it is called a positive Babinski sign. A positive Babinski sign indicates damage to the pyramidal tract, also known as damage to the corticospinal tract, suggesting possible damage to the motor pathways of the nervous system, mainly seen in cerebral infarction, cerebral hemorrhage and damage to the spinal cord.