Why do i start hoppping and running around when i bash my foot into someting?

Question

Why do i start hoppping and running around when i bash my foot into someting?

Answer 1

its the respond to ur stimuli ,,,i a fraction of sec.it happens to me too....ur eyes see u bash ur leg it gives that message to the brain and the brain commands the leg to hop and run and even tell the hands to hold ur leg and ur eyes to cry for sensitive people sweet frnd:)

Answer 2

to wiggle it around and get blood flow into it

Answer 3

Because it hurts and it's a natural reaction to try and get away from the pain