Methods The clinic data of 40 cases of congenital intestinal atresia were reviewed, including duodenal atresia8, jejunal atresia8 and ileum atresia24.

Surgical operation confirmed that 46 cases with malrotation of intestines, 24 with congenital duodenal atresia or stenosis (including membranous stenosis) and 15 with annular pancreas.

Conclusions In neonatal period, the etiology of intestine obstruction non-operation reason mainly is small intestine atresia, malrotation of intestine, duodenal septum stenosis.