Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Foot Drop ?
    ### Response:
    Foot drop describes the inability to raise the front part of the foot due to weakness or paralysis of the muscles that lift the foot. As a result, individuals with foot drop scuff their toes along the ground or bend their knees to lift their foot higher than usual to avoid the scuffing, which causes what is called a steppage gait.
    