Patient Education | Spine Care
Sciatica vs. back strain: how to tell the difference
Lower back pain can come from a muscle strain, a nerve problem, or both. The key question is whether the pain stays in your back or travels down your leg.
Quick answer
Back strain is usually a muscle and soft-tissue problem that stays in the lower back. Sciatica is usually a nerve problem that starts in the lower back or buttock and travels down one leg, often below the knee.
More like back strain
Pain stays mostly in the lower back, feels tight or spasming, and usually worsens with movement.
More like sciatica
Pain travels from the back or buttock down one leg, often below the knee, with burning, tingling, numbness, or weakness.
Do not wait
Loss of bladder or bowel control, groin numbness, or sudden severe weakness should be treated as urgent.
Your lower back hurts. That much is clear. What is not clear is why — and whether it is the kind of pain that resolves on its own in a week or the kind that needs to be looked at.
The distinction usually comes down to a single question: does the pain stay in your back, or does it travel?
Back strain is a muscle and soft-tissue problem. It hurts where the injury is. Sciatica is a nerve problem. It starts in the lower back but radiates down through the buttock and leg, often below the knee, because the nerve root being compressed or irritated runs the length of your leg.
Both are common. Both are treatable. Most patients with either one never need surgery. But they are different conditions with different treatment paths, and telling them apart early tends to make recovery shorter.
Medical note: This article is educational and should not replace an in-person evaluation. Severe or worsening symptoms should be reviewed by a healthcare provider. For emergency symptoms, call 911 or go to the nearest emergency room.
On this page
What is a back strain?
A lumbar strain is an injury to the muscles or tendons supporting your lower spine. It typically happens the way you would expect — lifting something awkwardly, a sudden twist, an afternoon of yard work you will regret, or a wave that knocked you sideways at the beach.
What it usually feels like:
- Pain concentrated in the lower back, sometimes spreading across to both sides
- Muscle tightness, spasm, or a “locked up” feeling
- Pain that worsens with movement and eases with rest
- Stiffness that is worst first thing in the morning
- Discomfort that stays above the knee, if it spreads at all
Most lumbar strains improve substantially within two to six weeks. Research consistently shows that staying gently active recovers better than extended bed rest. Walking, light stretching, and returning to normal activity as tolerated are usually the right instinct.
What is sciatica?
Sciatica is not a diagnosis on its own — it is a symptom of something pressing on or irritating a nerve root in your lower spine, most often the L4, L5, or S1 root. The most frequent cause is a herniated disc. Spinal stenosis, degenerative disc changes, and, less commonly, bone spurs or muscle compression can produce the same picture.
Whatever the cause, the sciatic nerve carries the message down your leg.
What it usually feels like:
- Pain that travels from the lower back or buttock down the back of one leg
- Pain that often extends below the knee, sometimes into the foot
- A sharp, electric, or burning quality rather than a dull ache
- Numbness, pins-and-needles, or tingling along the same path
- Weakness in the leg or foot
- Pain that worsens with sitting, coughing, sneezing, or bending forward
- Symptoms that are almost always one-sided
That last point is worth underlining. Back strain frequently affects both sides. Sciatica usually picks a leg.
Pain traveling down your leg?
Radiating leg pain, numbness, tingling, or weakness may need a spine evaluation, especially if symptoms are not improving.
Sciatica vs. back strain: side-by-side comparison
The symptoms can overlap, but the pattern often gives important clues. This version is designed to work better on mobile than a traditional table.
Where it hurts
Back strain: Lower back, often both sides
Sciatica: Back or buttock, radiating down one leg
How far it travels
Back strain: Usually stays above the knee
Sciatica: Often below the knee, sometimes to the foot
What it feels like
Back strain: Aching, tight, spasming
Sciatica: Sharp, burning, electric
Numbness or tingling
Back strain: Rare
Sciatica: Common
Weakness
Back strain: No
Sciatica: Possible
Worse when
Back strain: Moving, bending, lifting
Sciatica: Sitting, coughing, sneezing
If you looked at this comparison and thought “some of both,” you are not wrong. The two can occur together, and a strain can flare on top of an existing disc problem. That is one of the reasons an evaluation is useful when symptoms persist.
When should you see someone?
Most back pain does not need a specialist. Some of it does, and a few symptoms need attention right away.
Get evaluated promptly if you have:
- Pain radiating below the knee, particularly with numbness or tingling
- Weakness in your leg, foot, or ankle — trouble lifting your toes, or your foot slapping when you walk
- Pain that has not improved after two to three weeks of self-care
- Pain that wakes you at night or does not ease with any position
- Back pain following a fall, car accident, or direct injury
- Back pain accompanied by fever, unexplained weight loss, or a history of cancer
Seek emergency care immediately if you have:
- Loss of bladder or bowel control
- Numbness in the groin or inner thighs, sometimes described as a saddle pattern
- Sudden, severe weakness in both legs
These last symptoms can signal cauda equina syndrome, a rare condition that requires urgent surgical evaluation. It is uncommon. It is also not something to wait on.
Spine evaluation
Not sure if it is sciatica or a back strain?
If pain is radiating below the knee, symptoms are not improving, or you are unsure what is causing your back pain, call PBOA to schedule a spine evaluation.
How these conditions are treated
Here is the part that surprises most patients: the large majority of sciatica cases resolve without surgery.
Treatment for both conditions generally follows the same ladder, starting at the bottom rung.
Conservative care
Activity modification, targeted physical therapy, anti-inflammatory medication, and time. For back strain, this is frequently the whole treatment. For sciatica, most patients improve substantially within six to twelve weeks on this approach alone.
Physical therapy
Not generic stretching — a program built around your specific pattern of symptoms. Our on-site therapy team works directly with our spine providers, so the plan reflects what the evaluation actually found.
Diagnostic imaging
X-rays and MRI, when the findings would change the plan. Ordering an MRI on day three of back pain rarely helps, and often surfaces incidental findings that alarm patients without changing treatment.
Injections
For persistent nerve pain, an epidural steroid injection can help reduce inflammation around the affected nerve root, often enough to let physical therapy do its work. Dr. Brett Teran, our physiatrist, performs these as part of our non-surgical pain management program.
Surgery
Reserved for patients with progressive weakness, or with pain that has not responded to a genuine course of conservative treatment. When it is the right answer, Dr. Steven Leckie handles it — and because he is part of the same team that evaluated you, nothing has to be re-explained.
The point of the ladder is that you start at the bottom. You only move up if you need to.
What to expect at your first spine visit
Your first appointment with our Comprehensive Spine Group is an evaluation, not a decision about surgery.
A member of the spine team — one of our physician assistants, Dr. Teran, or Dr. Leckie — will take your history, examine your strength, reflexes, and sensation, and identify whether your symptoms follow a nerve pattern or a muscular one. Imaging is ordered if it will change the plan. You will leave with a diagnosis and a treatment plan.
Many patients see one of our spine PAs for that first visit, which usually means being seen sooner. Our physician assistants are trained spine providers who evaluate patients, interpret imaging, and build treatment plans alongside Dr. Leckie and Dr. Teran. If your care needs to escalate, you are already inside the team that will handle it.
Schedule a spine evaluation
If your symptoms are not improving, if pain is traveling down your leg, or if you are unsure whether your pain is sciatica or a back strain, call PBOA to schedule an evaluation.
Serving the South Shore and Cape Cod
Plymouth Bay Orthopedic Associates has cared for South Shore and Cape Cod patients since 1981. Our Comprehensive Spine Group sees patients at our Plymouth, Duxbury, and Sandwich offices, with on-site physical therapy, non-surgical pain management, and spine surgery available within the same practice.
We are affiliated with the New England Baptist Orthopedics Program at Beth Israel Deaconess Hospital – Plymouth and are a teaching affiliate of Tufts University School of Medicine. You do not need a referral to schedule.
Ready to find out what is causing your back pain? Call 781-934-2400 or contact Plymouth Bay Orthopedic Associates.
Frequently asked questions
Can sciatica go away on its own?
Often, yes. Many cases improve substantially within six to twelve weeks with conservative care. Symptoms that persist beyond that, or that include weakness, warrant evaluation.
Is it possible to have both a back strain and sciatica?
Yes. A muscle strain can occur alongside an underlying disc problem, and the strain can aggravate nerve symptoms. This is one reason persistent pain is worth evaluating rather than self-diagnosing.
Should I get an MRI for back pain?
Not usually, and not right away. Imaging is most useful when the results would change your treatment. Early MRI frequently reveals age-related disc changes that are present in people without any pain at all, which can lead to unnecessary worry.
Does sciatica mean I need surgery?
For most patients, no. The majority improve with physical therapy, activity modification, and sometimes an injection. Surgery is generally considered when there is progressive weakness or when conservative treatment has not provided relief.
How soon can I be seen?
Our spine team maintains evaluation appointments for new patients. Call 781-934-2400 to schedule.
What if my back pain starts after hours?
Our Ortho Urgent service handles orthopedic injuries during business hours, and PBOA After-Hours Access powered by HURT! is available outside of them. The emergency symptoms listed above — loss of bladder or bowel control, groin numbness, sudden weakness in both legs — should go to an emergency department.
Spine care on the South Shore and Cape Cod
Find out what is causing your back or leg pain
If your symptoms feel like sciatica, have not improved with self-care, or are interfering with daily activity, call Plymouth Bay Orthopedic Associates to schedule a spine evaluation.
Clinical review recommended before publishing
Comprehensive Spine Group
This blog should be clinically reviewed by Steven Leckie, MD or Brett Teran, DO before publishing because it includes clinical timelines, red-flag symptoms, and spine-treatment pathways.
Related spine care
- Comprehensive Spine Group
- Brett Teran, DO
- Steven Leckie, MD
- Physical Therapy
- PBOA locations and contact information
Medical disclaimer: This article is for educational purposes and does not constitute medical advice. Individual symptoms vary, and only an in-person evaluation can determine the cause of your back pain. If you are experiencing severe or worsening symptoms, contact a healthcare provider. For emergency symptoms, call 911 or go to the nearest emergency room.