What does babinski sign mean?

Babinski sign refers to the abnormal reflex when the brain loses its inhibitory effect on the brain stem and spinal cord when the pyramidal tract is damaged. It is used for clinical examination of nervous system and belongs to pathological reflex of pyramidal tract.

Babinski's sign: the patient lies on his back, and his lower limbs are straight. The examiner holds the upper ankle with his left hand to fix the lower leg, and the right hand holds a blunt metal bar to paddle from the outside of the sole to the toe, with the toe back extended and the other toes straight; Normal people's reaction is toe adduction and plantar flexion; There is no such thing as babinski's negativity.