In this article: herniated disc resorption
TL;DR - The essentials in 30 seconds
A 2024 meta-analysis of more than 2,200 patients confirmed what the scientific community had suspected for years: 70% of herniated discs resolve spontaneously. Your body has sophisticated biological mechanisms - involving macrophages, neovascularization and immune response - capable of resorbing herniated material. How long does it take? Between 3 and 6 months. Neurovertebral decompression, like that offered by SpineMED technology, does not replace this natural process. It optimizes it.
💡 Key takeaway
70% of herniated discs resolve naturally. The rate rises to 88% for sequestrations (detached fragments). Only 2 to 10% of patients ultimately require surgery.
What insiders already know (and what's changing)
If you're reading this article, you're probably not at the «what's a herniated disc» stage. You've already had a consultation. Maybe even received a surgical proposal. You're trying to understand really what's going on in your spine.
For decades, the dominant medical discourse presented the herniated disc as a permanently damaged structure. The disc is out? Remove it. This mechanical - almost automotive - vision of the human body justified millions of surgical interventions.
But the research of the last ten years tells a different story.
The intervertebral disc is not simply an inert shock absorber. It is a living tissue, capable of triggering complex biological responses when damaged. And in the majority of cases, these responses lead to resorption of the herniated material.
This is not optimism. It's biology.
Biological mechanisms of spontaneous resorption
Inflammation as an ally (not an enemy)
When the nucleus pulposus (the gelatinous center of the disc) passes through the annulus fibrosus into the epidural space, your immune system reacts immediately. This inflammatory reaction - often perceived as the «problem» - is actually the beginning of the solution.
Inflammation triggers a cascade of specific biological events:
Phase 1: Macrophage invasion
CD86+ and CD163+ macrophages are specialized tissue «cleaning» cells. As soon as they detect herniated material - considered a foreign body since the nucleus pulposus is never normally in contact with the immune system - they spring into action. Their job? Phagocytosis. Literally: eating and digesting the disc fragment.
Magnetic resonance imaging (MRI) studies show this phenomenon as a «bull's eye sign»: a ring of enhancement around the hernia, indicating ongoing resorption activity.
Phase 2: Neovascularization
The intervertebral disc is naturally avascular - it contains no blood vessels. This explains its difficulty in regenerating after injury.
However, as the herniated material moves out of the disc, new blood vessels form around it. This neovascularization allows more immune cells, oxygen and nutrients to be delivered to the affected area. It's as if your body were temporarily building a highway to the demolition site.
Phase 3: Enzyme activation
Matrix metalloproteinases (MMPs) come into play. These enzymes degrade the extracellular matrix components of the herniated fragment. Combined with the action of macrophages and the progressive dehydration of the extruded material, they help to reduce the volume of the hernia.
🎯 Counter-intuitive but true
Larger hernias often resolve more rapidly. The more the fragment is exposed to the epidural space, the more vigorous the immune response.
The immunological factor: a «useful» autoimmune reaction»
Here's a fact few patients are aware of: the nucleus pulposus is immunologically «invisible» to your body as long as it remains inside the disc. As soon as it leaves, the immune system recognizes it as an intruder.
This autoimmune reaction, usually associated with pathologies, becomes therapeutic here. It accelerates the degradation of herniated material. The more the fragment is exposed to the epidural space, the more vigorous the immune response.
Predictive factors and actual chronology
Who absorbs the best? Figures for 2024
The meta-analysis by Zou and colleagues, published in July 2024 and including 31 studies on 2,233 patients (PubMed), quantified resorption rates according to hernia type:
| Type of hernia | Absorption rate |
|---|---|
| Sequestration (detached fragment) | 87,8% |
| Extrusion (base still attached) | 66,9% |
| Protrusion (contained) | 37,5% |
| Disc bulge | 13,3% |
The message is clear: the longer the hernia is «out,» the greater its chances of disappearing. Sequestration - often presented as the «most serious» stage - paradoxically has the best prognosis for natural resorption.
Factors favoring resorption
In addition to the type of hernia, several other factors influence the probability and speed of resorption:
In favor :
- Large fragment size (larger = more surface area exposed to the immune system)
- Transligament extension (rupture of posterior longitudinal ligament)
- Loose core composition
- Perilesional enhancement on MRI (sign of active neovascularization)
- Recent onset of symptoms (less than 6 weeks)
- Younger age
Against :
- Modic changes to the vertebral endplates
- Presence of plateau cartilage in the herniated fragment
- Contained hernia (protrusion or bulge)
- Chronicity of symptoms
The real chronology: what to expect
Prospective studies with MRI follow-up now make it possible to trace a more precise chronology:
Weeks 1-6: Inflammatory phase and onset of resorption
- Painful peak often within the first 2-3 weeks
- Beginning of phagocytosis by macrophages
- First signs of neovascularization visible on MRI
- 25% hernia volume reduction possible
Months 1-3: Active resorption
- 24.7% of hernias show a significant reduction in this timeframe
- Average clinical improvement in 5.8 weeks for large hernias
- Enzymatic dissolution of extruded material
Months 3-6: Consolidation phase
- Median period of complete resorption
- Formation of stabilizing scar tissue
- Progressive recovery of nerve function
- 60 to 90% of patients improve with conservative treatment
Months 6-12: Long-term remodelling
- Final tissue reorganization
- Stabilization of results
- Only 2 to 10% of patients ultimately require surgery
Practical implications: how neurovertebral decompression optimizes the process
SpineMED: facilitating what your body already does
If your body has these natural resorption mechanisms, why intervene? The answer can be summed up in three words: environment, delay, symptoms.
Neurovertebral decompression with SpineMED technology does not replace the biological process of resorption. It creates the optimum conditions for it to occur more efficiently, while reducing your symptoms during this period.
Here's how:
Creation of intradiscal negative pressure
Decompression sessions generate a controlled negative pressure (between -100 and -600 mmHg) inside the disc. This gentle suction promotes two phenomena:
- Disc rehydration - nutrient fluids are «sucked» inwards
- Partial retraction of herniated material into the disc space
Improved nutritional intake
The intervertebral disc depends on diffusion to receive its nutrients (it has no blood vessels of its own). Decompression improves this diffusion by creating pressure cycles that «pump» nutrients towards the center of the disc. A better nourished disc = a more favorable environment for resorption.
Intervertebral foramen expansion
By gently pulling the vertebrae apart, decompression increases the space available for the nerves. Immediate result: reduced root compression and associated symptoms (sciatica, numbness, radiating pain).
Controlled muscle relaxation
Unlike conventional traction, the SpineMED system uses computerized control with real-time feedback. This technology detects any reflex muscle resistance and automatically adjusts parameters to avoid protective spasm. Paravertebral muscles relax, reducing the constant pressure on spinal structures.
Typical protocol in Laval
At Clinique Chiro Ste-Rose, a neurovertebral decompression session includes:
- 15 minutes of preparatory heat
- 30 minutes of SpineMED decompression
- 15 minutes of cold therapy
This protocol is part of a personalized care plan, usually lasting several weeks, to support the natural resorption process while actively managing symptoms.
Your first step
Before making any decisions about your herniated disc, ask for a follow-up MRI if your last scan was more than 3 months ago. Resorption may have begun without being reflected in your symptoms. Compare the images. Look for the «bull's-eye sign». Ask your healthcare professional about the volumetric evolution.
Informed patience is not passivity. It's a strategy based on science.
Ready to optimize your recovery potential?
At Clinique Chiro Ste-Rose, Dr. Michele Bernatchez, Chiropractor, DC, BSc, and Dr. François Poirier, Chiropractor, DC, BSc, have been guiding Laval and North Shore residents on their neuro-musculo-skeletal wellness journey for over 30 years.
SpineMED neurovertebral decompression technology, available at our clinic, creates the right conditions for the natural resorption of your herniated disc, while relieving your current symptoms.
Free initial consultation to validate that you are a good candidate for chiropractic care and that we can contribute to your well-being.
📍 www.chirosterose.com
📞 (450) 622-6525
📚 Scientific bibliography
Zou, T., Liu, X. Y., Wang, P. C., et al. (2024). Incidence of Spontaneous Resorption of Lumbar Disc Herniation: A Meta-analysis. Clinical Spine Surgery, 37(6), 256-269. (PubMed)
Xie, L., Dong, C., Fang, H., et al. (2024). Prevalence, clinical predictors, and mechanisms of resorption in lumbar disc herniation: a systematic review. Orthopedic Reviews, 16, 121399. (PubMed)
Zeng, Z., Qin, J., Guo, L., et al. (2024). Prediction and Mechanisms of Spontaneous Resorption in Lumbar Disc Herniation: Narrative Review. Spine Surgery and Related Research, 8(3), 235-242. (PMC)
Rashed, S., Vassiliou, A., Starup-Hansen, J., & Tsang, K. (2023). Systematic review and meta-analysis of predictive factors for spontaneous regression in lumbar disc herniation. Journal of Neurosurgery: Spine, 39(4), 471-478. (PubMed)
Li, X. C., Luo, S. J., Fan, W., et al. (2023). Investigation of macrophage polarization in herniated nucleus pulposus of patients with lumbar intervertebral disc herniation. Journal of Orthopaedic Research, 41(6), 1335-1347. (PubMed)
Zhong, M., Liu, J. T., Jiang, H., et al. (2017). Incidence of Spontaneous Resorption of Lumbar Disc Herniation: A Meta-Analysis. Pain Physician, 20(1), E45-E52. (Full text)
Frequently asked questions
Can a herniated disc really disappear without surgery?
Yes, scientific data from 2024 confirm a spontaneous resorption rate of around 70%. This figure rises to almost 88% for hernias with sequestration. Your body has the biological mechanisms to resorb herniated material.
How long should I wait before considering surgery?
Current consensus recommends conservative treatment for a minimum of 3 to 6 months, except in cases of progressive neurological deficit (loss of muscle strength, incontinence) or cauda equina syndrome. Only 2 to 10% of patients ultimately require surgery.
Is neurovertebral decompression painful?
No. SpineMED sessions are generally described as relaxing. The computerized system continuously adjusts parameters to avoid muscular resistance. Many patients fall asleep during treatment.
My hernia is big - that's worse, isn't it?
Counter-intuitively, no. Large hernias, particularly sequestrations, have the best resorption rates. The more the fragment is exposed to the immune system, the more effective the resorption response.
Is there a chiropractor with SpineMED in Laval?
Clinique Chiro Ste-Rose features 3rd-generation SpineMED neurovertebral decompression technology. Dr. Michele Bernatchez, Chiropractor, DC, BSc and Dr. François Poirier, Chiropractor, DC, BSc have been offering this service since 2015 to residents of Laval and surrounding areas.
How do I know if my hernia is shrinking?
A follow-up MRI may reveal signs of active resorption: reduction in herniated volume, presence of the «bull's-eye sign» (peripheral enhancement), reduction in radicular compression. Symptomatic improvement often precedes changes visible on imaging.
Can chiropractic treatment accelerate resorption?
Neurovertebral decompression creates a favorable environment for natural resorption by improving disc hydration, nutritional intake and reducing pressure on nerve structures. It does not replace the biological process - it optimizes it.
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