Ten-year-old boy vomiting stomach pain, consider acute gastroenteritis, intestinal obstruction, mesenteric lymphadenitis, acute appendicitis and so on. 1. Acute gastroenteritis: most of them have eaten unclean food or food poisoning before, which will stimulate the gastrointestinal tract and cause nausea, vomiting, abdominal pain, bloating, diarrhea and other symptoms. 2. Intestinal obstruction: high intestinal obstruction is common, such as eating hard-to-digest food, forming intestinal obstruction, stomach pain, nausea, vomiting, abdominal distension and so on. 3. Mesenteric lymphadenitis: mostly secondary to upper respiratory tract infections, manifested as pain around the navel or the right lower abdomen, nausea and vomiting when in pain. 4. Acute appendicitis: the typical symptom of acute appendicitis is metastatic lower right abdominal pain, nausea and vomiting when the pain is severe. Children vomiting stomach pain, need to go to the regular hospital in a timely manner, by a professional doctor to take targeted treatment measures after a clear diagnosis.