The child is one and a half years old, more able to eat, the stomach is bigger may be physiological factors, indigestion and other reasons. 1. Physiological factors: the child’s gastrointestinal tract itself is longer than that of an adult’s, the torso is relatively small, the child eats more, the appearance of a larger stomach is a normal phenomenon. If the diet is normal and the mental state is good, this situation will gradually disappear with the child’s age, there is no need to worry. 2. Indigestion: If a child consumes too much food at once, resulting in indigestion and gas accumulation in the gastrointestinal tract, he will also have a large stomach, which may be accompanied by bloating, abdominal pain, vomiting and other symptoms. The child is one and a half years old, more able to eat, the stomach is bigger, there may also be other reasons, such as hepatoblastoma, etc. It is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then under the guidance of the doctor to give targeted treatment or treatment.