In children, early symptoms of food retention are not obvious and may include loss of appetite, bloating, early satiety, nausea, vomiting, belching (hiccups), and fever over a long period of time. In children, accumulation of food (food indigestion and accumulation in the stomach) is usually due to the weakening of the digestive tract, resulting in food can not be digested and absorbed in a timely manner, accumulation of food in the early stages of the general lack of obvious symptoms. When food accumulates in the body for a long time, it affects eating and may cause loss of appetite, bloating and early satiety. Reflux of food upwards may result in nausea and vomiting, etc. Usually the vomit is undigested food. The fermentation of food in the body produces gas, belching may occur, and the odor is sour and unpleasant. In children with food retention, the body’s resistance is lowered, and infections such as bacterial infections may result in fever. In children, the onset of food retention is usually slow, and symptoms may vary from time to time and recur repeatedly. Due to individual differences, other symptoms may occur, so it is important to make a clear diagnosis under the guidance of a doctor and treat the condition in a timely manner, rather than blindly making a judgment on your own.