Shooting pain from the buttock down the leg is often called “sciatica” — but true sciatica (irritation of the sciatic nerve root at the spine) is only one possible cause. Piriformis syndrome — where a deep buttock muscle compresses the sciatic nerve — mimics it closely. Telling them apart matters, because the management differs.
What Sciatica Actually Is
Sciatica refers to pain radiating along the sciatic nerve, most often from a lumbar disc protrusion or herniation pressing on a nerve root. Typical signs: pain starting in the low back or buttock and traveling down the back of the thigh, sometimes to the calf or foot; often worse with coughing, sneezing, or prolonged sitting.
What Piriformis Syndrome Is
The piriformis is a small muscle deep in the buttock. When it becomes tight or spasmed — from prolonged sitting, running, or uneven loading — it can press directly on the sciatic nerve. Typical signs: deep aching in the buttock, pain when sitting on hard surfaces, tenderness when pressing the buttock, and symptoms that ease when standing or walking.
Key Differences at a Glance Back pain present? More typical of disc-related sciatica; piriformis syndrome usually stays in the buttock and leg. Worse when sitting?
Both — but piriformis pain often eases quickly on standing, while disc-related pain may linger. Tender buttock? Pressing the piriformis reproducing the pain points toward piriformis syndrome.
Neurological signs? Numbness, weakness, or foot drop suggest nerve-root involvement — see a doctor promptly.
What May Help Each
For piriformis-type pain: regular piriformis and hip-rotator stretching, avoiding prolonged sitting on hard surfaces, and soft-tissue release often help. For disc-related sciatica: activity modification, McGill-style core work, and avoiding aggravating flexion are typical first steps. A hands-on assessment can distinguish the two — which is why self-diagnosis has limits.
If leg pain persists, worsens, or includes numbness or weakness, get assessed. Read about sciatica treatment in Oakville. Disclaimer: This article is for educational purposes only and is not medical advice.
If you have persistent, severe, or worsening symptoms, consult your family doctor or healthcare provider.