Foot drop is a nerve problem that makes it hard to lift the front part of the foot when walking. It may cause a person to shuffle the foot on the ground or lift the whole foot higher than usual when walking.
Foot drop occurs because of muscles that are weak or can't move. This can happen because of injury or illness, such as brain disorders that cause muscle problems. Health problems that can cause foot drop include:
Treatment depends on the cause. If foot drop is caused by an injury or a health problem that can be treated, the person may be able to walk normally. In some cases, exercises can help strengthen leg muscles that lift the foot. Leg braces or other types of support also can help a person walk more easily.
WebMD Medical Reference from Healthwise