(And Why It Doesn’t Matter)

If you’ve been dealing with low back pain, chances are you’ve asked one of these questions:

• “Is it a disc issue?”
• “Is it a pinched nerve?”
• “My MRI shows a bulge… is that what’s causing my pain?”
• “Do I need surgery?”

And if you live in Spartanburg, you’ve probably Googled something like:

• physical therapy for back pain Spartanburg SC
• disc bulge without pain
• sciatica vs herniated disc
• MRI shows disc protrusion what does it mean

Let’s clear something up right away:

For most people, whether it’s technically “the disc” or “the nerve” is not the most important question.

What matters is:

• What your symptoms are
• How your body moves
• How sensitive your nervous system is
• And whether your provider empowers you… or scares you.

What Is a Disc? What Is a Nerve?

Your lumbar spine (low back) has:

• Intervertebral discs → shock absorbers between bones
• Spinal nerves → branches that exit the spine and travel into your legs

A disc bulge or protrusion can irritate a nearby nerve. When that happens, people may experience:

• Radiating leg pain
• Numbness or tingling
• Burning or electric-type pain
• True sciatica

But here’s the twist…

Disc Bulge Does NOT Automatically Mean Pain

Research consistently shows something surprising:

A large percentage of people have disc abnormalities with 

no back pain at all!

Some landmark findings:

• In people without back pain, over 50% had a disc bulge on MRI
• Around 27% had a disc protrusion
• Disc degeneration is seen in 30–80% of adults depending on age
• These numbers increase as we get older, even if we feel fine

That means:

Just because your MRI says “disc protrusion,” “degeneration,” or “bulge”…

does NOT mean that’s the source of your pain.

MRI is excellent at showing anatomy.

It is not excellent at telling us what hurts.

So… If It’s Not the Disc, What Is It?

Low back pain is influenced by:

• Movement patterns
• Muscle coordination
• Load tolerance
• Nervous system sensitivity
• Sleep and stress
• Fear of movement
• Strength deficits

None of that shows up on imaging.

Sometimes the nerve is irritated.

Sometimes the disc is involved.

Sometimes it’s muscular.

Sometimes it’s a sensitized nervous system that needs calming and graded exposure.

And sometimes… it’s a combination.

Why Focusing on the Wrong Thing Can Slow Recovery

When patients are told:

• “Your disc is damaged.”
• “Your spine is degenerating.”
• “You have a bad back.”

It often creates:

• Fear of bending
• Fear of lifting
• Avoidance of activity
• Guarded movement
• Increased pain sensitivity

Ironically, this fear can prolong back pain more than the disc finding itself.

Disc Pain vs Nerve Pain: What Actually Matters?

Instead of obsessing over the MRI wording, a skilled physical therapist asks:

• Does your pain centralize with certain movements?
• Does it travel below the knee?
• Is there true neurological weakness?
• What positions relieve symptoms?
• What loads trigger flare-ups?

A thorough movement exam tells us far more than a scan alone.

That’s why searching:

• back pain MRI findings explained
• disc bulge without pain
• do I need surgery for herniated disc
• physical therapy vs surgery for disc herniation

is actually leading you in the right direction! Because the real answer lives in assessment, not imaging.

A strong back pain physical therapy program focuses on:

✅ Reducing nerve sensitivity

✅ Improving spinal mobility

✅ Building strength and load tolerance

✅ Restoring confidence with movement

✅ Educating you without creating fear

We don’t treat MRIs.

We treat people.

Research consistently supports conservative care as a first-line approach for:

• Herniated discs
• Sciatica
• Lumbar radiculopathy
• Chronic low back pain
• Degenerative disc disease

And many patients improve significantly without injections or surgery.