Lesser sciatic foramen

Last revised by Craig Hacking on 17 Feb 2021

The lesser sciatic foramen is a small osteoligamentous foramen which provides communication of neurovascular structures between the pelvis, the perineum, and the gluteal region. The lesser sciatic foramen is separated from the larger greater sciatic foramen above by the sacrospinous ligament.

Gross anatomy


It is bounded by:


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