Bing's sign | |
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Differential diagnosis | upper motor neuron lesion |
Bing's sign or Bing's reflex is a clinical sign in which pricking the dorsum of the foot or toe with a pin causes extension of the great toe. It is seen in patients with upper motor neuron lesion of the lower limbs.[1] It is one of a number of Babinski-like responses.[citation needed]
This sign is named after Paul Robert Bing.[citation needed]