The clinical manifestations of foot drop are commonly as follows: 1. First, there will be obvious changes in the shape of the foot. At this time, if the patient is asked to take off shoes and socks, sit on the edge of the bed, and both lower limbs hang down naturally, it will be found that the toe of the lesion side will obviously point to the ground, and then the heel will be obviously raised. 2. there may be obvious weakness symptoms. If the patient is asked to do dorsiflexion and valgus of the ankle joint, the patient will often show obvious weakness or even be completely unable to complete the movement. In addition to this, the strength of the plantar flexion of the ankle joint will also be measured and a significant decrease will be found. 3. There may be symptoms of foot contracture. This manifestation is mainly concentrated around the heel bone, there may be obvious contracture of the skin, and when the Achilles tendon is palpated, tendon twinning may be felt. 4. There may be severe deformity of the foot. This condition is often seen in very severe foot drop. For example, there may be excessive protrusion of the dorsum of the foot to the lateral side, and there may be excessive heel elevation and pronation. Finally, there may also be a loss of sensory function in the lateral dorsum of the foot.