Sciatica vs. Back Pain: How to Tell the Difference

“My back is killing me” is one of the most common things we hear at our McKenzie Lake clinic — usually after a weekend of yard work in Cranston, shovelling the driveway in Douglasdale, or a long shift on your feet at Quarry Park. But not all back pain is the same, and one of the first questions we ask is whether the pain stays in your back or travels down your leg. That single detail often separates general low-back pain from sciatica.

Sciatica isn’t a diagnosis on its own; it describes irritation of the sciatic nerve, the large nerve that runs from your lower spine through your buttock and down the back of each leg. When something presses on or inflames the nerve roots that form it — commonly a bulging disc, a narrowed joint space, or a tight piriformis muscle in the buttock — the result is pain, tingling, burning or numbness that follows the path of the nerve.

The tell-tale signs of sciatica:

✓ Pain that radiates below the knee, often into the calf or foot, usually on one side

✓ Tingling, pins-and-needles or numbness along the leg

✓ Sharp or electric sensations when coughing, sneezing or sitting for long periods

✓ Weakness in the foot or lower leg in more significant cases

Mechanical low-back pain tends to stay local. It may spread across the low back or into the top of the buttocks, feel dull, achy or stiff, and change with position — worse after sitting through a long commute up Deerfoot, better once you get moving. It usually comes from the joints, discs and muscles of the lumbar spine themselves rather than from nerve irritation, and it rarely produces numbness or leg weakness.

✓ Location: Back pain stays in the back; sciatica travels down the leg

✓ Character: Back pain is dull or stiff; sciatica is often sharp, burning or electric

✓ Nerve signs: Sciatica may bring numbness, tingling or weakness; back pain usually doesn’t

✓ Triggers: Both worsen with sitting, but sciatica also flares with coughing, sneezing or bending

The two are managed differently. General low-back pain often responds well to restoring joint movement, easing muscle tension and building tolerance for activity. Sciatica requires identifying what is irritating the nerve — disc, joint or muscle — and taking pressure off it. Guessing wrong can mean weeks of stretching a muscle when the real issue is a disc, or vice versa.

Dr. Greg Driedger begins with a hands-on assessment that includes movement testing, nerve tension tests and reflex and strength checks to work out where the pain is coming from. From there, a plan may include gentle chiropractic care to improve spinal movement, registered massage therapy for the piriformis and hip muscles that often contribute, and specific home exercises. Many patients find that combination helps them settle a flare-up and reduce how often it returns. For stubborn tendon or muscle involvement, shockwave therapy with our RMT Jon Fisher is another option we can discuss.

Book soon if leg pain lasts more than a few days, keeps waking you at night, or comes with numbness. Seek urgent medical care if you develop weakness in both legs, numbness in the groin or inner thighs, or changes in bladder or bowel control — these are rare but need to be assessed in hospital.

Also available: 10% off your first massage — Registered Massage Therapists, direct insurance billing.