The causes of tummy distension in newborns mainly include the following: first of all, caused by newborns suffering from indigestion. Because the stomach capacity of newborns is very limited, parents feed their newborns too much milk, which can easily cause indigestion in newborns, which can be manifested as a bloated tummy and a significant decrease in the amount of milk eaten by newborns. In this case, the newborn can be improved by using anti-food and stagnation medication, such as Wang’s Bao Chi Wan. Secondly, it is caused by severe intestinal obstruction in newborns. If a newborn has intestinal obstruction, the newborn’s stomach will be very distended, and the newborn’s mental state is often very poor at this time, even accompanied by high fever that does not subside.