Closed abdominal injuries can present with symptoms such as abdominal pressure pain, rebound pain, muscle tension, mobile turbid sounds, narrowing or loss of the hepatic turbinate, and diminished or absent bowel sounds. Closed abdominal injuries are commonly seen in production, traffic and life accidents. The patient’s prognosis is determined by the presence or absence of visceral injury, often accompanied by other site injuries, such as traumatic brain injury, thoracic trauma and fractures, which obscure the history and signs and make the diagnosis less clear; and because some injuries with minor manifestations may also have intra-abdominal organ injuries. The following is an introduction to how to check the abdominal closed injury? 1, the abdomen has a history of direct or indirect violent injury. 2, there is often significant abdominal pain, accompanied by nausea, vomiting. Shock symptoms may occur. 3, the abdomen may have pressure pain, rebound pain, muscle tension, there may be mobile turbid sounds, the hepatic turbid boundary narrowed or disappeared, intestinal sounds weakened or disappeared. 4.X-ray examination, there may be free gas under the diaphragm. 5.Diagnostic laparotomy or abdominal lavage obtains positive results. 6.B-type ultrasound, CT, or MR examination can confirm the diagnosis of substantial organ injuries. 7, abdominal arteriography, intra-abdominal bleeding with positive results. 8.Cesarean section for clear diagnosis. After direct or indirect violent injury to the abdomen, the patient feels severe pain in the abdomen, accompanied by nausea, vomiting, pale skin and mucous membranes, increased pulse, abdomen refuses to press, or dare not turn over and walk around after the injury, abdominal pain increases when moving, or abdominal distension gradually increases, all suggest the possibility of intra-abdominal organ injury or internal bleeding. At this time, the patient should be kept stable, quickly sent to the hospital, pay attention to the application of strong drugs such as morphine pain relief, so as not to cover up the condition, delaying treatment and cause serious consequences.