The main reason is that it can cause inflammation of the stomach, thus causing an increase in the gastrointestinal burden, resulting in stomach pain, nausea and vomiting. If the stomach pain, nausea and vomiting occur after overeating, the possibility of acute pancreatitis should also be considered. It is recommended to improve the blood amylase series, as well as abdominal ultrasound or abdominal CT and other related tests to exclude the possibility of acute pancreatitis. The early symptoms of appendicitis can also appear as upper abdominal pain with nausea and vomiting, followed by metastatic right lower abdominal pain and discomfort.