Overview
A lumbar disc herniation happens when the soft centre of a disc pushes through its outer ring, sometimes pressing on or irritating a nearby nerve root. When that nerve root is irritated, pain, tingling or numbness can travel down the leg — the pattern called sciatica.
Disc herniations are common. Symptoms often improve with conservative care over weeks to months, and herniated disc material can shrink over time. That does not mean every scan becomes normal or that every case follows the same course.
Typical Pattern
- Pain down the buttock and leg, often worse than the back pain itself
- Tingling or numbness in part of the leg or foot
- Pain worsened by sitting, bending, coughing or sneezing
- Occasional weakness in the leg or foot
- Back pain that may be mild or absent
Why It Develops
Herniations can follow a specific lift or twist, but they also happen with everyday movement — discs weaken and change with age, so some herniations occur without any memorable event.
Treatment
- Stay active within comfort; prolonged bed rest is not recommended
- Use short-term pain relief if needed and appropriate
- Keep the spine moving and return to activity gradually
- Progress trunk and leg strengthening as symptoms allow
- Surgery is considered for selected cases — usually when leg pain is severe and persistent, or when there is progressive weakness — and is rarely urgent
When to Get Assessed
Arrange assessment for persistent or worsening leg pain, numbness or weakness. Seek urgent care for saddle numbness, difficulty urinating, loss of bladder or bowel control, or weakness developing in both legs — these can signal a serious nerve problem (cauda equina syndrome) and need immediate attention.
Related Reading
- Leg pain (sciatica)
- Intervertebral discs
- Sciatic nerve
- General back loading principles
- Lumbar disc herniation recovery timeline
References
- NICE. "Low back pain and sciatica in over 16s: assessment and management." NG59. 2016 (updated 2020). https://www.nice.org.uk/guidance/ng59
- IASP. "Surgical or non-surgical management for sciatica." https://www.iasp-pain.org/publications/relief-news/article/management-for-sciatica/
- BMJ Best Practice. "Cauda equina syndrome." https://bestpractice.bmj.com/topics/en-gb/3000164
This information is for education only and is not a medical diagnosis. InjuryAtlas does not replace an assessment by a qualified health professional. If you have severe pain, visible deformity, numbness, loss of function, or symptoms that are getting worse, seek medical care promptly.