Two-year-old baby said stomach pain can be seen in gastrointestinal dysfunction, acute gastroenteritis, acute appendicitis and other conditions. 1. Gastrointestinal dysfunction: can be caused by improper diet, abdominal pain, often intermittent, mild symptoms, some babies may appear nausea, vomiting, etc., discretionary dietary adjustments after the above symptoms can be relieved. 2. Acute gastroenteritis: can be caused by viral or bacterial infections, clinical abdominal pain, often accompanied by fever, vomiting or diarrhea symptoms, severe cases can be depressed, oliguria. 3. Acute appendicitis: is a common digestive tract surgical disease in children, abdominal pain is a common symptom of the disease, can be progressive aggravation, abdominal pain is mostly periumbilical pain and metastatic right lower abdominal pain, some of the babies abdominal pain symptoms are not typical. The two-year-old baby said the stomach pain may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.