What is herniated disc?
The discs between the vertebrae act as shock absorbers, with a tough outer ring and a gel-like centre. A herniated (slipped or prolapsed) disc occurs when the centre pushes out through a weakness in the ring. Many herniations cause no symptoms at all, but if the bulge presses on or inflames a nearby nerve root it causes radiating pain, tingling, numbness or weakness — sciatica when in the lower back, arm pain when in the neck. Herniations are most common between 30 and 50, when discs still have a soft centre but their outer ring has begun to weaken. Lifting, twisting or simply bending can trigger one, though often there is no clear cause.
Diagnosis rests on the history and neurological examination, with MRI the definitive test when symptoms persist or intervention is being considered.
Common symptoms
- Sudden or gradual onset of back or neck pain
- Pain radiating into the leg (sciatica) or arm
- Tingling or pins and needles in a limb
- Numbness in part of the leg, foot, arm or hand
- Muscle weakness in the affected limb
- Pain worse with sitting, bending, coughing or sneezing
How long will you wait?
Routine NHS spinal referrals typically pass through MSK triage before a surgeon is seen, and reaching MRI, injections or surgery for a persistent herniated disc commonly takes several months, with around 34% of listed patients waiting over 18 weeks.
Privately, you can typically see a spinal surgeon within 3–7 days, with MRI within days and injections or surgery, if needed, usually within 2–4 weeks.
NHS England median referral-to-treatment wait: 12.4 weeks, with 2.5 million people waiting over 18 weeks (May 2026). Individual waits vary by trust and urgency.
Treatment options
- Conservative care. Relative rest, pain relief and early gentle activity allow most herniations to shrink and settle over weeks to months.
- Physiotherapy. A graded exercise programme restores movement, strength and confidence during and after recovery.
- Epidural or nerve root injection. Image-guided steroid injections calm nerve inflammation and can control pain while natural resorption occurs.
- Microdiscectomy or cervical surgery. Surgical removal of the herniated fragment relieves persistent nerve compression, with cervical discs sometimes replaced or fused.
What does private treatment cost?
As a guide, self-pay lumbar microdiscectomy typically costs around £8,000–£12,000, with image-guided spinal injections around £1,500–£2,500.
Does health insurance cover herniated disc?
Private medical insurance normally covers investigation and treatment of a newly herniated disc, from MRI and physiotherapy through to injections and surgery. Any history of back or neck trouble before the policy started is likely to trigger a pre-existing exclusion for related spinal problems, so disclose accurately and check your terms. Recurrent or degenerative spinal disease can be assessed as chronic, meaning insurers fund discrete acute treatments rather than ongoing management.
Frequently asked questions
Can a herniated disc heal without surgery?
Yes, and most do. The body gradually breaks down and reabsorbs herniated disc material, and large herniations often shrink the most. Around nine in ten people recover with conservative care over weeks to months. Surgery is mainly for those with persistent disabling nerve pain, progressive weakness, or the rare emergency of cauda equina syndrome.
Is a herniated disc the same as a slipped disc?
Yes. Slipped disc, prolapsed disc and herniated disc all describe the same thing: the soft centre of the disc pushing out through its outer ring. The disc does not actually slip out of place, and the spine remains stable. Knowing this matters, because fear of the spine being fragile often delays the return to normal movement that aids recovery.
Will lifting cause another herniation?
A previous herniation does modestly increase the chance of recurrence, but avoiding activity altogether weakens the muscles that protect your spine and makes problems more likely, not less. Building back strength progressively, using sensible lifting technique and staying generally fit are the best defences. Most people return to full activity, including manual work and sport.