One of the more common conversations I have with patients starts with something they saw on an MRI report.

“My MRI says I have a bulging disc. How bad is that?”

Or they were told they have a herniated disc and immediately assume surgery is somewhere in their future.

I understand the concern. Words like bulging, herniated, protrusion, and degeneration sound serious when you’re reading them on a radiology report. But an imaging finding doesn’t tell us everything about how your spine is functioning, why you’re hurting, or what needs to happen next.

A bulging disc and a herniated disc are not exactly the same thing. More importantly, neither diagnosis automatically means you’re going to have chronic pain or need surgery.

Let’s break down what these terms actually mean.

First, What Is a Spinal Disc?

Between most of the vertebrae in your spine sits an intervertebral disc. These discs help distribute forces through the spine while allowing movement between the vertebrae.

A spinal disc has two primary components.

The annulus fibrosus is the tough outer portion of the disc. It is made of multiple layers of collagen fibers arranged around the outside.

The nucleus pulposus is the softer, more hydrated material toward the center.

I often describe the disc as a load management structure rather than simply a “shock absorber.” Every time you walk, bend, lift, sit, run, or exercise, your discs are helping distribute mechanical forces through the spine.

They’re designed to handle load.

Problems can develop when the structure of a disc changes because of age, repetitive loading, genetics, injury, or a combination of factors.

What Is a Bulging Disc?

A disc bulge occurs when the outer contour of the disc extends beyond the normal margins of the vertebral bodies over a relatively broad area.

Think of the disc becoming wider around part of its circumference rather than having one small focal area pushing outward.

A bulging disc can occur in the:

• Cervical spine, or neck
• Thoracic spine, although this is less common
• Lumbar spine, or lower back

Lumbar disc bulges are particularly common.

Here’s the important part: a bulging disc doesn’t necessarily hurt.

Many people have disc bulges and have absolutely no idea they’re there.

What Is a Herniated Disc?

A disc herniation is generally a more localized displacement of disc material.

Instead of the disc extending broadly beyond its normal boundary, material from inside the disc pushes through or displaces the outer fibers in a more focal area.

You may see several terms on an MRI report describing this, including:

• Disc protrusion
• Disc extrusion
• Disc herniation
• Sequestered disc fragment

These terms describe the shape and extent of the displaced disc material.

They do not, by themselves, tell me how much pain someone should be experiencing.

Bulging Disc vs. Herniated Disc: The Simple Difference

The easiest way to understand the difference is this:

A bulging disc involves a broader extension of the disc, while a herniated disc involves a more focal displacement of disc material.

Both can occur without symptoms.

Both can also irritate nearby structures and produce significant symptoms.

That is why the MRI and the patient have to be evaluated together.

Can You Have a Bulging Disc Without Pain?

Absolutely.

This is probably the most important thing I want patients to understand when we talk about spinal imaging. Abnormal findings are extremely common in people who have no pain.

Research examining MRI findings in asymptomatic people has found disc degeneration, bulging, protrusions, and other degenerative changes across a wide range of ages. These findings generally become more common as people get older.

That means finding a disc bulge on an MRI does not prove that the disc is causing your symptoms. This distinction matters because we don’t treat an MRI.

We treat a person.

If an imaging finding corresponds with the patient’s history, neurological findings, pain pattern, and examination, it becomes much more clinically meaningful.

Does a Herniated Disc Always Cause Pain?

No.

A herniated disc becomes particularly relevant when it irritates or compresses nearby neural tissue or when the disc itself becomes a source of pain.

For example, a lumbar disc herniation affecting a nerve root may produce:

• Lower back pain
• Pain into the buttock
• Pain traveling down the leg
• Numbness
• Tingling
• Changes in reflexes
• Muscle weakness

When symptoms travel along the sciatic nerve distribution, people commonly call it sciatica.

A cervical disc herniation can produce a similar pattern into the shoulder, arm, or hand.

But once again, the presence of a herniation doesn’t guarantee symptoms.

What Causes a Disc to Bulge or Herniate?

Patients often want to identify one event.

Sometimes there is one.

Someone lifts something heavy, twists unexpectedly, has an accident, or experiences another significant physical stress immediately before symptoms begin.

Other times there isn’t a dramatic injury at all.

Disc changes can develop gradually through a combination of factors such as:

• Aging
• Genetics
• Previous injuries
• Repetitive loading
• Physical conditioning
• Occupational demands
• Smoking
• Prolonged sedentary behavior
• Overall disc degeneration

This is why someone can bend down to pick up something relatively light and suddenly develop severe pain.

The final movement may have triggered the symptoms, but the disc may have been changing long before that moment.

Does Sitting Make Disc Problems Worse?

It can.

Prolonged sitting can aggravate certain types of lower back and disc related pain. Sitting changes the mechanical demands placed on the lumbar spine, and many people also spend that time in a flexed position.

That doesn’t mean sitting is inherently dangerous.

The bigger problem is often too much of one position for too long.

If you work at a desk, changing positions throughout the day is usually more realistic than trying to maintain one supposedly perfect posture for eight hours.

Stand up. Walk. Change positions. Move your hips. Move your upper back.

Your body generally responds better to movement variability than prolonged static positioning.

Can a Bulging Disc Turn Into a Herniated Disc?

The terminology isn’t quite that straightforward.

A bulging disc isn’t necessarily the first stage of an inevitable progression toward herniation. They describe different morphological appearances of the disc.

A disc can change over time, but seeing a bulge does not mean you’re destined to develop a herniation.

This is another reason I don’t want patients becoming fearful because of one line on an imaging report.

The goal should be understanding what the finding means in the context of your actual health and function.

Can a Herniated Disc Heal?

This is where the body gets interesting.

Disc herniations can change over time, and research has documented spontaneous regression of herniated disc material in some patients managed conservatively.

In other words, an MRI finding isn’t necessarily permanent.

The body can adapt.

Inflammation can decrease. Symptoms can improve. Function can return. In some cases, herniated material can decrease in size over time.

That doesn’t mean every herniation will resolve on its own, but it does explain why immediate surgery isn’t necessary for many people with disc herniations.

Do You Need Surgery for a Herniated Disc?

Most people with a disc herniation do not automatically require surgery.

Conservative management is commonly considered when there are no serious or progressive neurological findings.

Depending on the individual, conservative care may include:

• Appropriate activity modification
• Exercise and rehabilitation
• Spinal manipulation when clinically appropriate
• Mobility work
• Progressive strengthening
• Ergonomic changes
• Education about movement and loading

The specific treatment should depend on the examination rather than simply the words written on the MRI report.

There are situations, however, where surgical evaluation becomes much more important.

When Is a Herniated Disc an Emergency?

Certain symptoms require immediate medical evaluation.

Seek urgent care if back or neck symptoms are accompanied by:

• New loss of bowel or bladder control
• Numbness around the groin or saddle region
• Significant or rapidly progressing muscle weakness
• Severe neurological changes
• Major trauma with neurological symptoms

Progressive weakness is particularly important.

Pain can be severe without permanent neurological damage. Progressive loss of motor function is a different situation and needs to be taken seriously.

Why Your MRI Doesn’t Tell the Whole Story

Imaging is incredibly useful when it is used appropriately.

It can show anatomy that we can’t see from the outside. It can identify disc changes, degenerative changes, fractures, stenosis, and other structural findings.

What an MRI cannot do is sit across from me and explain how you feel.

It doesn’t tell me which movements aggravate your symptoms. It doesn’t test your reflexes. It doesn’t tell me whether you’re getting weaker. It doesn’t show me how you move when you squat, bend, walk, or rotate.

That information comes from the patient and the examination.

I want the imaging to support the clinical picture, not replace it.

How I Evaluate Someone With a Suspected Disc Problem

At Crown City Chiropractic & Wellness, the first objective is determining what we’re actually dealing with.

For someone presenting with lower back or neck pain and a suspected disc problem, the evaluation may include:

• Detailed history of the symptoms
• Orthopedic testing
• Neurological examination
• Muscle strength testing
• Reflex testing
• Sensory evaluation
• Range of motion
• Postural assessment
• Functional movement evaluation
• Digital X rays when clinically indicated

X rays do not directly visualize a disc herniation. If the history and neurological examination indicate that MRI or another form of advanced imaging is appropriate, that changes the next step.

There are also times when the appropriate decision is referral rather than chiropractic treatment.

Good conservative care includes knowing when not to treat something.

Can Chiropractic Help a Bulging or Herniated Disc?

Chiropractic care may be appropriate for some patients with disc related mechanical neck or lower back pain, depending on their symptoms and neurological findings.

I don’t look at it as “putting the disc back in.”

That’s not an accurate description of what an adjustment does.

Instead, treatment is aimed at improving spinal movement, reducing mechanical irritation when possible, improving surrounding function, and helping the patient gradually return to normal activity.

For many disc patients, rehabilitation matters just as much.

The long term objective is not simply getting someone comfortable enough to sit on the couch without pain. I want them to regain the capacity to work, exercise, travel, play with their kids, golf, lift weights, or do whatever their normal life requires.

Should You Stop Exercising With a Bulging Disc?

Not necessarily.

One of the worst things someone can take away from an MRI is the belief that their spine has become fragile.

A disc finding doesn’t automatically mean you need to stop exercising, lifting, or being active.

Certain activities may need to be temporarily modified based on symptoms. From there, the goal is usually progressive exposure back toward normal activity.

Your spine is living tissue.

It adapts to appropriate stress just like the rest of your musculoskeletal system.

The answer usually isn’t avoiding movement forever. It’s determining what you can currently tolerate and progressively building from there.

The Bottom Line

A bulging disc and a herniated disc are different findings, but neither one should be interpreted in isolation.

A bulging disc describes a broader extension of the disc beyond its normal margins. A herniated disc describes a more localized displacement of disc material.

Either one can cause symptoms.

Either one can exist without symptoms.

That’s why I don’t make treatment decisions from one sentence on an imaging report.

If you’ve been told you have a bulging or herniated disc, the questions I care about are: Does the imaging finding match your symptoms? Is there nerve involvement? Is your strength changing? How are you moving? What makes the problem better or worse? And what can we do to improve your function?

Those answers tell us much more about what needs to happen next.

Frequently Asked Questions About Bulging and Herniated Discs

What is the difference between a bulging disc and a herniated disc?

A bulging disc generally extends beyond the normal boundary of the vertebrae over a broader area. A herniated disc involves a more localized displacement of disc material. Both findings can occur with or without symptoms.

Which is worse, a bulging disc or a herniated disc?

Neither term by itself tells us how serious someone’s condition is. A small herniation affecting a nerve may cause significant symptoms, while a larger disc abnormality may cause no symptoms at all. The neurological examination, symptoms, and imaging findings need to be considered together.

Can a bulging disc heal?

Disc findings can change over time, and symptoms associated with a bulging disc can improve significantly. Whether the appearance of the disc itself changes depends on the type and extent of the finding.

Can a herniated disc heal without surgery?

Yes. Many people with disc herniations improve with conservative management, and research has documented spontaneous regression of herniated disc material in some cases. Surgery becomes more important when certain serious or progressive neurological deficits are present or conservative management fails.

Can a chiropractor help a bulging disc?

Chiropractic care may be appropriate for some people with mechanical pain associated with disc problems. Treatment should be based on an examination and neurological findings rather than the MRI finding alone.

Can a chiropractor help a herniated disc?

Some patients with herniated discs can be managed conservatively, including chiropractic and rehabilitative care when appropriate. Progressive weakness, severe neurological deficits, or other red flags may require medical or surgical evaluation instead.

Does a bulging disc cause sciatica?

It can. If a lumbar disc abnormality irritates a nerve root contributing to the sciatic nerve, symptoms may travel into the buttock or leg. Not every bulging disc causes sciatica, however.

Can you have a herniated disc without knowing it?

Yes. Disc abnormalities are found on imaging in people without pain or neurological symptoms. This is why imaging findings need to be correlated with the patient’s clinical presentation.

Is walking good for a herniated disc?

Walking is well tolerated by many people with disc related lower back pain and can be a useful way to remain active. The appropriate amount depends on the individual. Activities that consistently worsen neurological symptoms should be discussed with a qualified healthcare provider.

Should I get an MRI for lower back pain?

Not everyone with lower back pain needs an MRI. Advanced imaging becomes more important when symptoms, neurological findings, trauma, treatment response, or other clinical factors suggest that additional information will affect management.

What are the warning signs of a serious herniated disc?

Progressive muscle weakness, bowel or bladder dysfunction, saddle numbness, or significant neurological changes require prompt medical evaluation. Severe pain alone does not necessarily indicate severe neurological damage, but changing neurological function should not be ignored.

About Dr. Pat Buchar

Dr. Pat Buchar, D.C. is the founder of Crown City Chiropractic & Wellness in Charlotte, North Carolina. His approach combines chiropractic care, spinal and postural assessment, movement evaluation, rehabilitation, and patient education with the goal of understanding why a problem is occurring rather than simply chasing symptoms.

Crown City Chiropractic & Wellness
The Metropolitan | Midtown Charlotte, NC