The key to the diagnosis of closed abdominal injury is to determine whether the closed abdominal injury is an injury to a cavernous organ or a substantial organ. The organs in the abdominal cavity mainly include solid organs such as the liver, spleen, and pancreas, while the cavernous organs are mainly the stomach, small intestine, colon, and rectum. In the case of injury to solid organs, such as the liver and spleen, which are the most commonly injured intra-abdominal organs, the main clinical manifestation is intra-abdominal hemorrhage, and the patient may present with decreased blood pressure, pallor, and increased heart rate. Diagnostic laparotomy can be performed to extract non-coagulated blood. In contrast, rupture of the cavernous organs, mainly the gastrointestinal tract, leads to the entry of digestive fluid into the abdominal cavity, resulting in symptoms of peritonitis, which can manifest as severe abdominal pain, which can be manifested as a “plate-like abdomen”, full abdominal pressure pain, rebound pain, and diminished or absent bowel sounds.