Sudden pain in the stomach is often considered to be the presence of inflammation of the abdominal organs, stones, the details of which need to be carefully distinguished.1, if the lower abdomen, the right upper abdomen, sudden colic, accompanied by nausea, fever, urinary abnormalities, most of the consideration for the presence of gallstones, kidney stones.2, if the pain in the epigastric area, accompanied by acid reflux, heartburn, nausea and vomiting, most often due to inflammation of the gastroduodenal or ulcer.3, have a history of binge drinking, alcohol abuse, the upper and middle abdomen, accompanied by nausea and vomiting, most often due to acute pancreatitis. If you have a history of overeating and alcoholism, nausea and vomiting in the upper and middle abdomen, acute pancreatitis is the most common cause. 4. Metastatic right lower abdominal pain, accompanied by nausea and fever, acute appendicitis is the most common cause. 5. If you have a history of oily food before the onset of the disease, and you have severe pain or colic in the upper right abdomen, acute cholecystitis is the most commonly considered cause of the disease. 6. If abdominal pain is accompanied by diarrhea and watery stools, enterocolitis is the most commonly considered cause of the disease. 7.