From 2007 to 2010, 17 patients with intra-abdominal hernia intestinal obstruction were admitted to our department, and we report them as follows. 1. Clinical data There were 17 patients in this group, 12 males and 5 females. Their ages ranged from 19 to 56 years old, with an average of 42 years old. Eleven of them were admitted for abdominal pain, five for abdominal distension, and one for anal stoppage of defecation. After treatment, the patients were given general treatment such as gastrointestinal decompression, fluid replacement and antibiotic application, and abdominal standing X-ray and spiral CT examination were performed. 12 patients had X-ray examination suggesting the presence of a wide liquid-gas plane in the abdominal cavity and 5 patients had negative X-ray examination; 14 patients had positive findings on abdominal spiral CT (8 cases suggested abdominal mass, 5 cases suggested intestinal torsion signs and 1 case suggested intestinal overturning) and 3 cases patients had negative CT examinations. After 6h-72h of conservative treatment, the patients’ clinical symptoms were not relieved or worsened, and finally a dissection was performed. Results: Intraoperative investigation resulted in intestinal obstruction due to intra-abdominal hernia formation in 17 patients in this group, and the causes of internal hernia were: 7 cases of postoperative herniation with adhesions; 5 cases of herniation with adhesions of Meckel diverticulum; 2 cases of pelvic floor hernia; 2 cases of paraduodenal hernia; and 1 case of perisigmoid hernia. Two patients had partial necrosis of the small intestine (one case of strangulated necrosis due to adhesions and one case of strangulated necrosis due to pelvic floor hernia). According to the investigation, internal hernia repositioning, adhesion release, hernia repair, and one-stage intestinal anastomosis after resection of necrotic small intestine were performed. The recent prognosis of this group of patients is good, and no major complications occurred. Intra-abdominal hernia refers to the entry of intra-abdominal organs or tissues into a gap in the abdominal cavity through normal or abnormal orifices or fissures in the abdominal cavity [1], and can be divided into congenital and acquired categories according to the causes of intra-abdominal hernia: congenital refers to large and deep peritoneal fossa, defective peritoneum, omentum or mesentery due to congenital factors such as intestinal tube rotation or abnormal peritoneal attachment during embryonic development, or In the case of congenital herniation, the intestinal canal can be herniated through the abnormal orifice of the peritoneum or mesentery caused by factors such as surgery, trauma, inflammation, etc. The intestinal canal can be herniated through this hole. According to the structure of the hernia, it is divided into true hernia and pseudohernia according to the presence or absence of a hernia sac. A herniation of an organ into another peritoneal sac crypt with a hernial sac is called a true hernia. If there is a fissure in the omentum or mesentery, or an abnormal orifice due to surgery or trauma, the intestine is herniated and does not have a hernial sac and is called a pseudohernia [2]. The incidence of intra-abdominal hernia is low, about 0.2%-0.9%, but it is an important cause of intestinal obstruction, accounting for about 5.8% of the causes of intestinal obstruction, and with the increase in the number of intestinal obstruction dissection procedures and awareness, the trend has increased recently [3]. Intra-abdominal hernia intestinal obstruction is insidious and prone to intestinal necrosis, infectious shock and even death; if a large number of necrotic small intestine is resected, it causes short bowel syndrome, so if correct treatment is not given in time, the condition is delayed and the prognosis is poor. Through the diagnosis and treatment of 17 patients in this group, we have the following experience: the key to the treatment of intra-abdominal hernia intestinal obstruction is early diagnosis, close observation of the condition and timely surgical intervention. Detailed history taking, careful physical examination and reasonable auxiliary examination are the prerequisites for early diagnosis, among which, standing abdominal X-ray and abdominal spiral CT examination are of great value in the early diagnosis of intra-abdominal hernia. The diagnosis of intestinal obstruction can be established when multiple fluid planes can be seen on abdominal radiographs, indicating the accumulation of fluid in the intestinal cavity and isolated, fixed, distended intestinal collaterals. If spiral CT examination indicates abnormal occupying signs in the intestinal canal or abnormal tethered vascular pathways, it is often indicative of intra-abdominal hernia intestinal obstruction, so CT examination has an extremely unique significance in the early diagnosis [4]. In patients with intestinal obstruction conforming to the above imaging examinations, if the patients’ clinical symptoms are not relieved or aggravated after the routine management measures of intestinal obstruction are given, timely dissection is required. In this group, 15 patients were operated within 24 h of conservative treatment after admission (including 6 cases operated within 12 h and 9 cases operated within 12 h-24 h), and no intestinal necrosis occurred in 1 case. 2 cases were operated within 48 h-72 h of treatment after admission, and partial small bowel necrosis was found and intestinal resection was performed. Therefore, for patients with intestinal obstruction with features of intra-abdominal hernia on CT examination, if conservative treatment is ineffective, we advocate prompt dissection and exploration surgery within 24h, and not later than 48h [5]. The early diagnosis of intra-abdominal hernia intestinal obstruction is difficult, and the consequences of wrong timing of surgery are serious, which can cause disability, death and increase the treatment cost, and put a huge mental and economic burden on patients and society. Therefore, clinicians should raise awareness of intra-abdominal hernia, make early diagnosis, and administer timely and correct treatment.