You get your MRI report, read words like "disc desiccation", "annular tear" and "neural foraminal narrowing", and by the time you reach the end you are convinced your spine is falling apart.
Take a breath. That report was written by a radiologist for a surgeon. It describes what the pictures show — not how much trouble you are in.
The single most important thing to understand
An abnormal MRI is normal.
Studies that scan people with no back pain at all consistently find disc bulges, degeneration and even herniations in a large proportion of them — and the proportion climbs steadily with age. By middle age, disc changes on MRI are close to a universal finding.
These are the spinal equivalent of grey hair and wrinkles. They show that your spine has been used.
This is why a good surgeon does not treat your scan. They treat you, and use the scan to explain your symptoms.
The vocabulary, translated
Disc desiccation / degeneration. The disc has lost water content and height. Extremely common with age. On its own, not a diagnosis and not a reason for surgery.
Disc bulge. The disc extends beyond its normal boundary, broadly and symmetrically. Very common. Frequently causes no symptoms whatsoever.
Disc protrusion. A more focal outpouching — the base is wider than the part sticking out. May or may not press on anything.
Disc extrusion. The material pushes out further than its base. More likely to be pressing on a nerve — but the deciding factor is still whether it correlates with your symptoms.
Sequestration. A fragment has broken free from the disc. Sounds alarming, and can cause severe pain — but interestingly, free fragments are often the ones the body reabsorbs best, so these can settle without surgery.
Annular tear / annular fissure. A crack in the tough outer ring of the disc. The word "tear" causes panic. In reality these are common, frequently painless, and usually need no specific treatment.
Spinal stenosis. Narrowing of the central canal. Relevant if it matches symptoms — classically, leg pain on walking that eases when you sit or bend forward.
Neural foraminal narrowing. Narrowing of the exit tunnel where a nerve root leaves the spine. Relevant if it corresponds to the nerve causing your symptoms.
Modic changes. Changes in the bone next to a disc. An area of ongoing research; their significance is debated.
Facet arthropathy. Arthritis in the small joints at the back of the spine. Very common with age; a possible source of back pain.
L4-L5, L5-S1 etc. Simply the address — which level of the spine is being described. L5-S1 is the lowest lumbar level, L4-L5 just above it. These two carry the most load and are the commonest sites of disc problems.
The question that actually matters
Not "what does my MRI show?" but: "Does what my MRI shows explain the symptoms I actually have?"
If the scan shows compression of the nerve supplying your right leg, and your pain is in your right leg in exactly that distribution — that correlates, and it means something.
If the scan shows a bulge at L4-L5 and your pain is across your lower back with no leg symptoms at all — the bulge may be an innocent bystander, and operating on it may achieve nothing.
This is the single commonest way patients end up with an unnecessary operation: a scan finding is treated instead of a patient.
What to do with your report
- Do not diagnose yourself from the words. They sound far worse than they usually are.
- Bring the actual images, not just the report, to your consultation. The pictures matter more than the paragraph.
- Ask your surgeon to point out precisely which finding explains which of your symptoms.
- If they cannot draw that line clearly — ask more questions before agreeing to anything.
Concerned about back or neck pain? Dr. M.D.S. Sasidharan offers endoscopic, minimally invasive and non-fusion spine care at Iswarya Hospital, OMR, Chennai. Book a consultation to find out whether you can avoid surgery altogether.
Frequently Asked Questions
Does a disc bulge on MRI mean I need surgery?
Usually not. Disc bulges are extremely common and are frequently found in people with no back pain at all. Surgery is considered only when a scan finding clearly explains your actual symptoms and those symptoms have not settled with non-surgical treatment — not because a bulge appears on a report.
What is the difference between a disc bulge and a herniation?
A bulge is a broad, symmetrical extension of the disc beyond its normal boundary and is often harmless. A herniation (protrusion, extrusion or sequestration) is a more focal displacement of disc material, which is more likely — though not certain — to press on a nerve. What matters is whether it corresponds to your symptoms.
Can a bad-looking MRI still be treated without surgery?
Yes, and this happens constantly. Even large herniations are often reabsorbed by the body over weeks to months, with symptoms settling through physiotherapy and time. The appearance of the scan does not by itself determine the treatment — your symptoms and examination do.