Small gait is walking slowly, with both feet rubbing the ground. It shows small steps, dragging, slow starting or turning, and unsteady gait. Gait refers to the posture of walking. When walking, the affected foot just touches the ground, the healthy foot quickly starts to move forward; the healthy foot touches the ground for a long time, the affected foot touches the ground for a short time. The limb may show a small gait when the cone bundle is mildly damaged, and because the degree of muscle weakness varies, it should be carefully examined to detect the muscle weakness. When a patient with small gait is in supine position, ask the patient to flex the hip and knee joints with force, and ask the patient to lift the leg when sitting, and carefully compare the weakness of the affected limb, so it is called “iliopsoas muscle sign” positive. 1. First, let the patient with small gait take the supine position, and the doctor will place his hand under the root of his foot, then ask the patient to lift the lower limb, if there is mild paralysis on one side, while the force of the lower limb on the opposite side presses downward is increased. Or instruct the patient to stand, and the knee joint on the side of mild paralysis is flexed and cannot be straightened. 2. The patient with small gait is instructed to lift both upper limbs flat, close the eyes, and stay for several minutes, and the upper limbs on the side of the mild paralysis are seen to rotate forward and gradually descend. However, hysterical paralysis is often a rapid descent. Or ask the patient to lie prone, lift the two lower legs to keep 45°, and the lower leg of the minor palsy side can fall slowly, or ask the patient to lie supine and lift the two legs flat, and after a short pause, the minor palsy side can fall slowly. 3.Patients with small gait are asked to lift both fingers flat and palms downward, and the little finger on the side of mild paralysis may appear to be abducted, or the patient is asked to flex the thumb with force, and the examiner exerts resistance on the dorsal side of the end joint of the thumb, and the dorsiflexion force of the thumb on the side of mild paralysis is seen to be weakened. Or the patient may lie on his back and cross his arms in front of his chest. If the patient is asked to sit up, the hip joint on the side of mild paralysis may be flexed and the heel is raised, but the healthy side is not moved.