The nature of abdominal pain is usually divided into the following categories: first, bloating pain, the most common is gastritis, gastric ulcer or acute inflammation of the gastrointestinal tract, such as intestinal obstruction, intestinal adhesions resulting in abdominal pain. Second, colic, colic is usually gastrointestinal tract dysfunction, acute gastroenteritis, or abdominal colic caused by ureteral calculi, kidney stones. There may also be some gynecological diseases, such as twisted ovarian cysts, which may also cause colic. Third, dull pain is usually caused by inflammation of the abdomen, such as appendicitis, pelvic inflammatory disease, cholecystitis, etc.