患儿，女，第三胎第三产，足月顺产，出生史无异常。因生后1天出现腹胀、反复吐胆汁样内容物收入院。查体二，P136次／分，R56次／分。神萎，心肺无异常。腹胀，腹壁静脉显露，肠鸣音亢进，肝脾触不清。肛门指诊觉直肠缩窄感，肠鸣音力进，肝脾触不清。肛门指诊觉直肠缩窄感， Children, women, the third child of the third trimester, full-term birth, no abnormal birth history. 1 day after birth due to abdominal distension, repeatedly vomiting bile-like content income hospital. Physical examination two, P136 times / min, R56 times / min. Shen Wei, no abnormal heart and lungs. Abdominal distension, abdominal veins revealed bowel sounds hyperthyroidism, liver and spleen touch unclear. Anus refers to the sense of rectum narrowing sense of bowel sounds, liver and spleen touch unclear. Anal fingerprints sense of rectal narrowing,