Indigestion in three-year-old babies may present with symptoms such as postprandial fullness, early satiety and abdominal pain. 1. Post-meal bloating: If your baby suffers from indigestion, it may cause food to remain in the stomach for a longer period of time, resulting in a feeling of fullness and discomfort. 2. Early satiety: If your baby has indigestion, he or she may feel full soon after eating, which can easily lead to a smaller amount of food. 3. Abdominal pain: manifested as severe epigastric pain or burning sensation, the pain may be induced or relieved by eating, and cannot be relieved after defecation or passing gas. It may also be accompanied by mental symptoms such as irritability, insomnia and poor concentration. When the baby has dyspepsia, serious need to be actively treated under the guidance of the doctor, daily life attention to eat less high-fat fried food.