Back Pain: Is It Really a Pulled Muscle — or Facet Joint Pain?
You know what you're probably thinking when your back suddenly starts hurting.
“I just pulled something.” or maybe: “I must have moved the wrong way.” or “It's probably inflammation.” or commonly “My back muscles are tight, so I probably strained a muscle.”
Those are understandable conclusions. And sometimes muscle irritation or inflammation really is part of the picture.
But they don't always explain why your back pain started, why it keeps coming back, or why it hasn't improved the way you expected.
There's another part of the spine that often gets overlooked when people think about back pain: the posterior joints of the spine — the facet joints.
Facet joint pain can feel like ordinary low back pain or even like a pulled muscle. And because facet joints sit behind the discs, they don't always receive the same attention that disc problems do. That matters because the structure producing the pain isn't necessarily the structure you feel hurting.
Your back muscle may be tight because something underneath it is irritated. Your MRI may show a disc abnormality that isn't the primary source of your symptoms. And what feels like “inflammation” may be part of a larger mechanical problem.
So rather than simply asking, “Where does my back hurt?”
A more useful question is: “What structure may actually be generating the pain?”
That's where understanding the facet joints — and differentiating facet-related pain from disc-related pain — becomes important.
The Posterior Joints: The Part of Your Spine You May Not Be Thinking About
When most people picture the spine, they think about the vertebrae and the discs between them. But behind those discs are paired joints called facet joints. Facet joints help guide and limit movement of the spine. They contribute to spinal stability while allowing controlled extension, rotation, and side-bending. Facet joints are true synovial joints, meaning they have characteristics similar to other joints in the body, including cartilage, a joint capsule, and synovial tissue.
They are also richly innervated.
That is particularly important when we're talking about pain.
Why a Facet Joint Can Become a Pain Generator
Facet joints contain sensory nerve endings, including nociceptors — specialized receptors that respond to potentially painful mechanical or chemical stimuli.
When a facet joint becomes irritated or inflamed, these pain-sensitive structures can become activated. Research has demonstrated mechanically sensitive nociceptors in facet joint capsules, and inflammatory processes can increase the sensitivity of these pain pathways.
In other words: A facet joint does not have to be severely damaged to produce pain.
Mechanical stress, irritation, inflammation, and changes in how the joint is being loaded can all contribute to a pain response.
And that pain doesn't necessarily feel like it's coming from a small joint deep in the back.
It may simply feel like:
“My back hurts.”
Or:
“I think I pulled something.”
Or:
“Something is inflamed.”
That is one reason facet-related pain can be difficult to identify from symptoms alone.
“But My Back Feels Like a Pulled Muscle…”
This is one of the most important distinctions to understand. When a spinal joint becomes irritated, the muscles surrounding it may tighten as a protective response. That muscle tension is real. But that doesn't necessarily mean the muscle started the problem. The muscle may be responding to an irritated joint underneath it. If the irritation continues, that protective muscle tension may alter movement and mechanical loading through the area. In some patients, that can help perpetuate the irritation.
A useful way to think about the potential cycle is:
Joint irritation → protective muscle tension → altered movement → altered mechanical loading → continued irritation
This is not a universal sequence, and it doesn't mean every case of back pain follows the same process. But it helps explain why someone may repeatedly treat a “tight muscle” and experience temporary relief without addressing the factors that may be contributing to the problem.
The more useful question becomes: Why does the muscle keep tightening? And Is It Really Just “Inflammation”?
Inflammation can certainly be involved in facet joint pain. An irritated joint can develop an inflammatory response, and inflammatory chemicals can increase the sensitivity of pain-sensitive structures around the joint. But saying “it's inflammation” doesn't necessarily explain what is keeping the area irritated.
That's an important distinction.
Inflammation can be part of the process without being the whole problem. If mechanical stress, restricted movement, or an irritated joint continues, simply focusing on inflammation may not address the broader mechanical factors contributing to the symptoms.
The goal should be to understand the source and contributing factors, rather than treating 'inflammation' as if it were the entire diagnosis. This is exactly the diagnostic-first approach we use before recommending non-surgical spinal decompression
How Facet Joint Irritation Can Become a Long-Term Problem
Facet problems don't always begin with one dramatic injury. Sometimes there is an obvious event — a lifting injury, sudden movement, sports injury, or accident. Other times the process is much more gradual.
Repeated mechanical loading, restricted movement, altered spinal mechanics, previous injury, and degenerative changes elsewhere in the spine can all influence the forces experienced by the facet joints.
Once a joint becomes irritated, protective muscle tension may further change how the spine moves and distributes load.
Over time, repeated mechanical stress and inflammatory processes may contribute to degenerative changes in the facet joints.
But there is an important distinction: Degeneration on an MRI does not automatically mean that the facet joint is the source of someone's pain.
That's why the history and clinical examination matter.
Facet Pain vs. Disc Pain: Why the Difference Matters
Facet-related pain and disc-related pain can overlap considerably.
Both can produce low back pain. Both can cause stiffness. Both can sometimes refer discomfort into the buttocks or upper thigh.
But there are patterns that can provide useful clues.
Facet-related pain may:
Be primarily localized to the low back
Refer into the buttock, hip, or upper thigh
Become more noticeable with spinal extension or certain rotational movements
Be associated with stiffness after periods of inactivity
Be aggravated by prolonged standing or certain loaded positions
Disc-related pain may:
Be aggravated by prolonged sitting or certain flexion-based activities
Produce central or lower back pain
Refer into the buttock or leg
Produce nerve-related symptoms when a disc problem affects a nerve root
But these are patterns, not diagnostic tests. No single symptom, movement, or physical finding reliably establishes that a facet joint is the source of someone's pain.
That's why these observations need to be considered as part of the larger clinical picture.
Your MRI May Show a Disc Problem. That Doesn't Automatically Make It the Pain Generator.
This is another common source of confusion.
An MRI may show:
A disc bulge
A herniated disc
Facet degeneration
Bone spurs
Spinal stenosis
Other age-related changes
Seeing an abnormality on an MRI can be important. But the presence of an abnormality does not automatically prove that it is responsible for the pain you're experiencing. The spine is a connected mechanical system, and more than one finding can exist at the same time.
For example, someone may have a disc bulge and facet degeneration.
Which one is causing the pain?
Possibly one.
Possibly the other.
Possibly both.
And sometimes the muscles surrounding those structures are contributing to the symptoms as well.
That's why imaging needs to be considered alongside the patient's history, symptoms, movement patterns, neurological findings, and physical examination.
The most obvious finding on an MRI isn't necessarily the pain generator.
Diagnostic Differentiation: Finding the Structure Behind the Symptoms
This is what we mean by diagnostic differentiation.
Instead of starting with an assumption — “It's my disc,” “it's inflammation,” or “I pulled a muscle” — the goal is to look at the available information and determine which structures may actually be contributing to the symptoms.
That means considering:
Where does the pain occur?
What movements aggravate it?
What positions relieve it?
Is the pain staying in the back, or traveling into the leg?
Are there neurological symptoms?
What does the physical examination show?
What does the imaging show — and does it fit the symptoms?
And perhaps most importantly:
Does the mechanical picture make sense as a whole?
There may not be one piece of information that tells the entire story. The goal is to put the pieces together.
What If the Disc and Facet Joints Are Both Involved?
This is an important possibility. The spine doesn't always give us a single-problem diagnosis.
A person may have disc degeneration, facet changes, muscular guarding, and altered movement mechanics at the same time. In that situation, asking “Is it the disc or the facet?” may be too simplistic.
The better question may be: “How are these structures interacting, and which factors appear to be contributing most to the symptoms?”
That changes the treatment conversation. Instead of chasing one abnormality on an MRI, the goal becomes understanding the patient's overall clinical and mechanical picture.
A Solution-Oriented Approach to Back Pain
At Triangle Spinal Decompression in Cary, we don't believe every case of back pain should automatically be treated as a disc problem. We also don't assume that every case is a facet problem. The starting point is understanding what may be generating the pain and what factors may be contributing to it. If the disc is a significant part of the clinical picture, treatment may need to address the disc and the surrounding mechanical environment.
If the facet joints are contributing, those posterior joints need to be considered.
If protective muscle tension is part of the problem, that needs to be addressed as well.
And when several factors are involved, the strategy needs to account for the relationship between them.
That's what makes the approach solution-oriented.
The objective isn't simply to chase the symptom. It is to identify the factors contributing to the symptom and develop a plan around that information — the same process we walk through in every new patient evaluation.
When Back Pain Doesn't Improve the Way You Expected
If you've been treating your back pain as a pulled muscle but it keeps returning, or you've been told that a disc abnormality is responsible but the symptoms don't seem to fit, it may be worth looking at the problem from a broader mechanical perspective.
The posterior joints — the facet joints — deserve to be part of that conversation.
They can become irritated. They can become inflamed. They can trigger protective muscle tension. And their symptoms can overlap with disc-related back pain.
Understanding that doesn't automatically tell you what treatment you need.
But it can change the question you're asking.
Instead of: “How do I get this pain to go away?”
You can start with: “What may actually be generating this pain?”
That's the starting point for a more targeted, solution-oriented approach.
About Triangle Spinal Decompression
Triangle Spinal Decompression in Cary, NC provides non-surgical, mechanically focused care for patients with disc-related conditions, back and neck pain, sciatica, and other spinal conditions. Our approach begins with understanding the individual clinical picture rather than assuming every case of back pain has the same cause.
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📍 Location: 3750 NW Cary Pkwy, Suite 105, Cary, NC 27513
📞 Phone: 919-469-8897
🌐 Schedule: Click here to schedule a consultation
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