Disc Herniation: Symptoms, Causes, and Treatment Options
Disc herniation (often called a herniated or “slipped” disc) happens when part of a spinal disc pushes through its tough outer ring and irritates nearby nerves. It is a common cause of back pain, neck pain, and sciatica. Whether you have sharp nerve pain, numbness, tingling, or a deep ache, this guide explains what a disc herniation is, how to make sense of your MRI, and which treatment options may help.
What Is a Disc Herniation?
Intervertebral discs sit between the vertebrae and act as shock absorbers. Each disc has a tough outer ring (the annulus fibrosus) and a soft, gel-like center (the nucleus pulposus).
A disc herniation occurs when the outer ring develops a defect or tear and the inner material pushes outward or leaks through it. The displaced material can crowd or compress nearby nerve roots and trigger local inflammation, causing pain, numbness, tingling, or weakness.
Herniations most often involve the lumbar spine (low back), which can cause leg pain or sciatica, and the cervical spine (neck), which can cause arm pain, numbness, or weakness. Thoracic (mid-back) herniations are less common, partly because the rib cage limits motion there.
A herniation seen on MRI is not always the cause of pain. Disc changes are common in people without symptoms, so a finding matters when it matches your symptoms and examination.
What Causes a Disc Herniation?
Common contributors include:
- Age-related disc degeneration and dehydration
- Repetitive bending, lifting, or twisting at work or during sports
- Sudden trauma, such as a fall, a heavy lift with poor mechanics, or a motor vehicle collision
- Prolonged sitting and poor posture, especially with weak core muscles
- Genetic predisposition to early disc degeneration
Disc herniations can occur after a car accident, and pain does not always start right away. See delayed pain after a car accident and our guide to no-fault injury care.
What Are the Symptoms?
Not every herniated disc causes symptoms. When symptoms occur, patients may notice:
- Localized neck or low back pain
- Sharp, shooting pain radiating from the back down the leg (sciatica)
- Arm pain or “electric” sensations with a cervical disc herniation
- Numbness, tingling, or burning in an arm or leg
- Muscle weakness in the shoulder, arm, hip, or foot
- Pain that worsens with coughing, sneezing, or prolonged sitting
Radiating limb pain from an irritated nerve root is called radiculopathy; learn more about a pinched nerve root.
Disc Herniation vs. Disc Bulge
Patients often see both terms on MRI reports. What matters most is not the label or size, but whether the disc is irritating a nerve in a way that explains your exact symptoms.
| Disc bulge | Disc herniation | |
|---|---|---|
| Shape | Broad-based extension beyond the normal border; outer ring intact | Focal displacement of disc material through a defect in the outer ring |
| Imaging terms | “Bulge,” “broad-based bulge” | “Protrusion,” “extrusion,” “sequestration” |
| Symptoms | Often none; can contribute to narrowing | Can be none, or can irritate a nerve root and cause radiating pain |
A small herniation in a tight canal can cause significant symptoms, while a large bulge may cause none. Location (central, paracentral, foraminal, or far-lateral), the nerve involved, and inflammation all matter. Compare with our disc bulge guide.
How Is a Disc Herniation Diagnosed?
A herniation on MRI is only important if it lines up with your symptoms and exam. Research shows disc abnormalities are common in people without back pain, so a scan is a tool, not a verdict.
- History: where the pain travels, what worsens it, and any numbness, weakness, or bladder or bowel changes.
- Examination: strength, reflexes, sensation, and nerve tension tests such as the straight-leg raise (low back) or Spurling’s test (neck).
- MRI: generally reserved for symptoms that persist despite several weeks of conservative care, for procedure planning, or sooner when red flags are present.
- EMG and nerve conduction studies: used in selected cases when the source of symptoms is unclear; not required for most patients.
For example, pain running down the leg to the top of the foot with weakness lifting the big toe suggests L5 nerve root irritation; a herniation at L4-5 on the same side contacting the L5 root would be clinically relevant, while a finding on the opposite side might be incidental. Similarly, neck pain with tingling in the thumb and index finger and a reduced biceps reflex suggests C6 involvement, which may match a C5-6 herniation.
Treatment Options: What Actually Helps?
A disc herniation does not automatically mean surgery. Many people improve with time and non-surgical care; procedures aim to relieve pain and are chosen according to your symptoms and exam.
Conservative Care
- Activity as tolerated: staying gently active rather than bed rest, while avoiding provocative positions.
- Physical therapy: individualized core-strengthening and stabilization programs.
- Medications: anti-inflammatories, nerve-modulating agents, or muscle relaxants when medically appropriate.
- Chiropractic care: when appropriate, coordinated with trusted chiropractors.
Dr. Amit Sharma & our minimally invasive pain & spine team.
Image-Guided Injections
- Transforaminal epidural steroid injection: delivers medication near the irritated nerve root where herniations typically cause compression.
- Selective nerve root block: used diagnostically and therapeutically to identify the involved nerve and relieve radicular pain.
- Other epidural steroid injection approaches, including Versa-Kath directed epidural delivery, depending on the level involved.
Relief from injections varies and is not permanent for everyone. Potential risks include soreness, bleeding, infection, nerve irritation, and medication side effects.
Options for Persistent Nerve Pain
- Pulsed radiofrequency of the dorsal root ganglion, a non-destructive way to modulate chronic nerve pain signals.
- DRG stimulation, a form of neuromodulation for selected refractory radicular pain.
Minimally Invasive Disc Procedures
- Endoscopic lumbar discectomy: an outpatient procedure through a small incision with camera guidance to remove the offending fragment while preserving normal tissue.
- Percutaneous discectomy and Disc-FX for selected contained herniations.
For treatment details and next steps, see herniated disc treatment on Long Island.
When Is Surgery Considered?
Surgery can be very helpful when appropriately indicated. Generally accepted indications include:
- Severe or progressive neurological deficit, such as significant weakness
- Pain that remains disabling despite appropriate conservative care
- Emergencies such as cauda equina syndrome
Because surgery is sometimes recommended mainly on MRI appearance, a careful second opinion that correlates imaging with symptoms and exam can help. When surgery is appropriate, we work with spine surgeons who share an evidence-based approach and counsel patients on risks, benefits, and alternatives.
When to Seek Medical Care
Seek emergency care for new loss of bladder or bowel control, numbness in the groin or inner thighs (saddle numbness), or rapidly worsening leg or arm weakness.
Schedule an evaluation if pain lasts more than 2-3 weeks despite rest and self-care, if you develop numbness, tingling, or weakness in an arm or leg, or if pain disrupts work, household tasks, or sleep.
Disc Herniation Care at SpinePain Solutions
At SpinePain Solutions, Amit Sharma, MD, Chief, Division of Pain Medicine, Good Samaritan University Hospital, and our team evaluate disc herniations, review MRI images directly (not just the written report), and provide second opinions, and offer image-guided, minimally invasive care at our Bay Shore, Commack, and Farmingdale offices. Call 631-310-0000 to schedule.
Frequently Asked Questions
Will a herniated disc heal on its own?
Many disc herniations gradually improve over weeks to months as inflammation settles and the body resorbs some of the disc material. Persistent or worsening symptoms should be evaluated.
How long does a herniated disc take to heal?
It varies. Many people improve over several weeks to a few months with activity as tolerated and physical therapy; some need longer or need procedures. Your exam and progress guide the timeline.
Can a car accident cause a herniated disc?
Yes, trauma such as a car crash can cause or aggravate a disc herniation, and symptoms are not always immediate. A careful exam helps determine whether the disc explains your symptoms.
Do I need an MRI for a herniated disc?
Not always right away. MRI is generally considered when symptoms persist despite several weeks of conservative care, when a procedure is being planned, or sooner if there are red flags such as weakness or bladder or bowel changes.
Is an epidural steroid injection safe for a herniated disc, and how long does it last?
Image-guided epidural injections are commonly performed and have a low rate of serious complications, but risks exist. Relief varies from person to person; the goal is to reduce nerve pain enough to allow recovery and rehabilitation.
Dr. Amit Sharma & our minimally invasive pain & spine team.
When does a herniated disc need surgery?
Surgery is considered for progressive or significant weakness, cauda equina syndrome (an emergency), or disabling nerve pain that persists despite appropriate non-surgical care.
Should I rest in bed or keep moving with a herniated disc?
Guided, gentle activity is generally better than complete bed rest. Avoid heavy lifting and repeated bending or twisting during flares, and take breaks from prolonged sitting.
What is the difference between a bulging disc and a herniated disc?
A bulge is a broad extension of the disc with the outer ring intact. A herniation is a focal displacement of disc material through a defect in the outer ring. Either may or may not cause symptoms.
Medical References
- Kreiner DS, et al. An evidence-based clinical guideline for the diagnosis and treatment of lumbar disc herniation with radiculopathy. Spine J. 2014. PubMed.
- Lumbar Disc Herniation. StatPearls. NCBI Bookshelf.
- Cervical Disc Herniation. StatPearls. NCBI Bookshelf.
- Brinjikji W, et al. Systematic literature review of imaging features of spinal degeneration in asymptomatic populations. AJNR Am J Neuroradiol. 2015. PubMed.
- Herniated Disc. American Association of Neurological Surgeons. aans.org.
- Herniated Disk in the Lower Back. AAOS OrthoInfo. orthoinfo.aaos.org.
