Where is the pain coming from?
People call all deep-buttock pain “piriformis”. It often isn't. Three quick questions to narrow down whether you're dealing with the muscle, the nerve, the SI joint, or a lumbar disc, because the right routine changes accordingly.
Stop and see a doctor if any of these apply
- · Numbness or pins-and-needles in the groin or saddle area
- · Loss of bladder or bowel control, or trouble starting urination
- · Sudden severe weakness in one or both legs (foot drop, can't lift toes)
- · Fever along with the pain
- · Unexplained weight loss along with new pain
- · History of cancer with new buttock or leg pain
- · Pain that started after a significant trauma (fall, car accident)
These can be signs of cauda equina syndrome, infection, fracture, or tumour. Go to A&E or call NHS 111. Do not try to stretch through these.
Where exactly is the pain?
Deep in the buttock
Underneath where you'd put your back pocket, can be specific to one spot. Worse after sitting. Eases with movement. Likely piriformis or deep external rotators. Start with quick relief, then move to strengthen-stretch.
Over the side of the hip
On the outer hip bone or just below it. Often worse with side-lying or single-leg stance. Likely glute medius referred pain or hip bursitis, not piriformis. Glute med strengthening still helps, but pure piriformis stretching may not.
Over the sacrum (base of spine)
At the bony triangle where the spine meets the pelvis. Worse with prolonged standing or turning over in bed. Likely SI joint dysfunction, often confused with piriformis. The supine spinal twist helps; deep pigeon may aggravate.
Mostly down the leg
Buttock is mild, but pain shoots below the knee. Likely lumbar disc radiculopathy, not piriformis. Most leg-radiating “sciatica” comes from the spine, not the muscle. See the anatomy page for the distinction.
Tightness alone, or tightness plus nerve symptoms?
Tightness alone
Deep ache. Worse after sitting. Eases with stretching and walking. No shooting, no tingling, no electric pain. Piriformis tightness. The 12-minute strengthen-stretch routine is the appropriate protocol; 3-4 weeks of daily work usually shifts it.
Tightness plus nerve symptoms
Same tightness PLUS shooting/electric/tingling sensations into the back of the thigh or calf. Possible piriformis syndrome. Could also be true lumbar radiculopathy. See a physiotherapist for the differential. Until then, gentle piriformis stretches only (lying piriformis, supine figure-4). Avoid deep pigeon.
Piriformis syndrome vs true sciatica (from a disc)
Both produce leg-radiating pain. Telling them apart matters because the protocols are different.
- · Piriformis syndrome: pain reproduced by direct pressure into the deep buttock, by pigeon-style positions, or by resisted external rotation. Often relieved by walking. Symptoms usually stop at the calf, rarely to the foot.
- · Lumbar radiculopathy: pain reproduced by sitting, coughing, or sneezing. Often gets to the foot. Positive straight-leg raise test (lifting the leg supine triggers leg pain at 30-70 degrees). The right protocol is McKenzie extension, not piriformis stretching.
Hopayian and colleagues' 2010 systematic review of physical exam tests for piriformis syndrome is the reference. There's no perfect single test; clinical reasoning combines history, location, and provocation tests.
How long has it been going on?
Under 48 hours
Acute. Tissue is still reactive. Use the 4-minute quick relief routine: gentle stretches only, no strengthening yet.
48 hours to 6 weeks
Subacute. Start adding strengthening. The 12-minute strengthen-stretch combo is the right protocol. Daily.
Over 12 weeks (chronic)
Chronic. Get a physiotherapy assessment to rule out hip joint pathology, lumbar disc, or SI joint contribution. Then the strengthen-stretch routine alongside professional care.
Quick comparison: what kind of pain is this?
| Source | Location | Worse with | What helps |
|---|---|---|---|
| Piriformis tightness | Deep in one buttock | Sitting, especially crossed-legged | Strengthen-stretch combo |
| Piriformis syndrome | Buttock + back of thigh | Sitting, wallet in pocket, cycling | Gentle piriformis only + physio |
| Lumbar radiculopathy | Spine + below the knee | Sitting, coughing, sneezing | McKenzie extension, see physio |
| Glute med pain | Side of hip, outer pelvis | Side-lying, single-leg stance | Clamshells, banded bridges |
| SI joint | Base of spine, dimple area | Turning in bed, prolonged stand | Supine spinal twist, see physio |