Gait abnormalities can be caused by motor or sensory disorders, and their characteristics are related to the site of the lesion. It can be seen in many neurological or other systemic diseases, and some typical abnormal gait, which is suggestive of specific diseases, can be diagnosed by visualization. Duck gait or swaying gait is a common sign of congenital medullary dislocation. In unilateral dislocation, lameness appears; in bilateral dislocation, the pelvis tilts forward when standing, the hips are shrugged backward, the waist is convex, the abdomen is bulged, and it is called duck gait or swaying gait because it sways from side to side when walking, and it is easy to fall when walking slightly fast. Life should pay attention to diet. A, appropriate food: 1, diet should be light, nutritious. 2, can eat more fish, eggs, chicken, lean pork, etc., but not too much, so as not to damage the spleen and stomach. 3, cabbage, bean sprouts, tomatoes, hawthorn, mandarin, dates and other vegetables and fruits can be appropriate to eat more. 4, diet should be high protein, rich in vitamins, calcium, zinc, lean meat, eggs, fish, shrimp, animal liver, ribs, fungus, mushrooms, tofu, cauliflower, etc. can be appropriate to eat more. Second, avoid eating: 1, avoid eating or eat greasy and thick taste too hot, injure the fluid and damage the spleen and stomach products. 2, eat less or avoid eating too spicy, too salty, cold and other undigestible and stimulating food.