“…Conditions that promote OH include a congenitally large obturator foramen, increased intra-abdominal pressure (chronic obstructive pulmonary disease, constipation, pregnancy, multiparity, ascites, kyphoscoliosis) and an increase in size of the obturator foramen relative to the surrounding adipose tissue resulting from dramatic weight loss 9. Femoral hernia is another relatively rare form of herniation, with an incidence of 2–8% of groin hernias, with a female predominance 3. A recent small case series by Yokoyama et al 10 reports the highest incidence of both bilateral OH (5 of 8 patients, 63%), and concomitant OH and femoral herniae (7 of 8 patients, 88%).…”