The main reasons why children are susceptible to dysentery include immature development of the digestive system, imperfect immune function, intestinal flora imbalance, artificial feeding and other factors. 1. Young children’s digestive system development is immature, gastric acid and digestive enzyme secretion, water metabolism is easy to disorders, all kinds of neuromodulation, immature liver and kidney function, easy to digestive tract disorders. 2. The immune function of the body and intestinal mucosa is imperfect, gastric emptying is faster, gastric acid secretion is less, the ability to kill bacteria in the gastrointestinal tract is poor, the immune defense response of the intestinal mucosal barrier and the oral tolerance mechanism is imperfect, and it is easy for intestinal infections. 3. Young children are prone to intestinal dysbiosis, and newborns have not yet established normal intestinal flora after birth, and are unable to resist the invasion of pathogenic microorganisms. 4. Breast milk contains a large number of humoral factors such as SIgA, lactoferrin, macrophages, lysozyme, can be very good resistance to foreign pathogenic bacteria, artificial feeding of the above components are basically destroyed, resulting in a decline in infant resistance. Children easily infected with dysentery, there may be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.