An 80-year-old woman with a body mass index of 19.6 kg/m SP 2 sp presented to our emergency department with a 2-day history of nausea and vomiting and sudden-onset left hip pain. The obturator canal, 2-3 cm long, passes forward and medially along the superolateral aspect of the obturator foramen and contains the obturator vein, artery and nerve.[1] First described by Arnaud de Ronsil in 1724, obturator hernia is relatively rare, accounting for 1% of all hernias and 1.6% of small bowel obstructions.[2] Because the sigmoid colon acts as an anatomical barrier, the obturator hernia on the left side is only one-third of that on the right. With the development of computed tomography technology, multiplanar reformations have significantly aided the early and correct diagnosis of obturator hernia.[7] In our case, preoperative abdominal computed tomography scan provided us with great help. [Extracted from the article]