Stomach pain accompanied by small abdominal pain is mostly caused by acute gastroenteritis, appendicitis, indigestion, gastrointestinal dysfunction and other causes. 1. Acute gastroenteritis: this disease is characterized by a more rapid onset, symptoms are more obvious, patients often appear vomiting and diarrhea, stomach pain, small abdominal pain, easy to cause dehydration and fever symptoms, usually caused by improper diet, patients need to do stool examination, vomit examination and abdominal examination. 2. Appendicitis: Acute appendicitis is characterized by epigastric pain at the beginning, and then shifted to the right lower abdominal pain, accompanied by fever, stomach pain, vomiting and other symptoms. It is necessary to do abdominal examination and blood routine and other related tests. 3. Indigestion: usually caused by improper diet, which may be caused by eating food that is not easy to digest or overeating. Patients manifested as stomach pain, accompanied by abdominal pain, bowel disorders, bloating, loss of appetite and other symptoms. 4. Gastrointestinal dysfunction: it may be caused by improper diet or mental psychological factors, gastrointestinal neurosis can cause stomach pain, accompanied by symptoms of abdominal pain. Stomach pain accompanied by small abdominal pain patients should be timely consultation, follow the doctor’s instructions standardized diagnosis and treatment.