Buttock Pain Is Not Always Piriformis Syndrome

A Convenient but Overused Label

Deep buttock pain, sometimes radiating toward the posterior thigh, is frequently attributed to piriformis syndrome — compression of the sciatic nerve by the piriformis muscle. In clinical practice, the label is applied far more often than the underlying condition can actually be confirmed.

An Inherently Difficult Condition to Confirm

A systematic review examining the clinical features used to identify piriformis syndrome found considerable inconsistency across the literature, identifying only four clinical features reported with reasonable consistency across studies, and noting that no single test or finding reliably confirms the condition in isolation (Hopayian & Danielyan, 2018).

What Else Commonly Mimics It

Lumbar radiculopathy, sacroiliac joint dysfunction, deep gluteal syndrome involving other structures in the same space, and proximal hamstring tendinopathy can all produce a very similar pattern of deep buttock pain. A careful assessment of the lumbar spine and sacroiliac joint, alongside targeted neural and tendon-specific testing, is required before attributing buttock pain to the piriformis by default.