Food retention mainly refers to the gastrointestinal disorders formed when children eat too much milk and damage the spleen and stomach, causing milk and food to stagnate in the middle jiao, which mostly occurs in infants and young children. There are various symptoms of food accumulation. Children with food accumulation often have loss of appetite, anorexia, bad breath, bloated stomach, stomach discomfort and even fever in the heart of hands and feet. The child’s body keeps tossing and turning during sleep and sometimes grinds his teeth. Observe that the sides of the child’s nose will be green, and you will also find a thick and white tongue coating when you stick out your tongue. When your nose is close to the child’s mouth, you will smell the gas with a sour and rotten smell exhaled from the child’s mouth. Treatment of food retention can be done through diet, such as eating hawthorn to eliminate food, eating less greasy and fried food, and eating more easily digestible food. If the symptoms are severe, you can take some medications to help digestion under the guidance of a doctor. Pediatric massage is also a good way to adjust the internal organs of children through meridian points, and change the situation of accumulation of food by changing the function of the internal organs. In normal life, insist that children do outdoor activities. After eating, take the child out for half an hour to an hour. Paying more attention to your child’s diet and doing more outdoor exercises can effectively prevent paediatric oesophagia.