GI Radiology > Hernia > External > Obturator

Obturator Hernia

Obturator hernias are a rare occurring entity found predominantly in women. These hernias pass through the obturator membrane, coming to lie between the obturator internus and the pectineus muscles. They may contain uterus, ovaries, bladder, colon, small intestine, appendix or omentum. These hernias are difficult to diagnose because they are not palpable externally, though they may be felt via rectal or vaginal exam. Though unclear why, obturator hernias occur more frequently on the right side. Thirty percent of patients with obturator hernias will present clinically with pain along the inner aspect of the thigh due to compression of the obturator nerve, also known as the Howship-Romberg Sign.

 


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