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Obturator hernias (OH) are extremely rare hernias, accounting for 0.07–1% of all hernias. This is the first systematic review investigating their presentation, imaging, treatment outcomes, and recurrence rate.

After a detailed search in electronic search engines, 74 studies matched our criteria. A review of these reports was conducted and the full texts were examined.

A total of 146 patients with a mean age of 78.8 years were included in our analysis, with 40.1%, 29.9%, and 25.2% of patients suffering from either a right, a left or bilateral OH, respectively. OH were associated with non-specific symptoms and signs; bowel obstruction being the most common. Howship–Romberg sign was present in 56.2% of patients. Computed tomography (CT) scan was the most frequently used diagnostic modality …