Foot drop, sometimes called drop foot, is a general term for difficulty lifting the front part of the foot.
If you have foot drop, the front of your foot might drag on the ground when you walk. This can cause you to raise your thigh when you walk, as though climbing stairs (steppage gait), to help your foot clear the floor. This unusual gait might cause you to slap your foot down onto the floor with each step.
Foot drop isn't a disease. Rather, foot drop is a sign of an underlying neurological, muscular or anatomical problem.
Foot drop can be temporary or permanent. Depending on the cause, foot drop can affect one or both feet.