Sciatica

Pain that travels along the sciatic nerve from the lower back down one leg, often caused by a slipped disc.

BackNervesLast updated: 21 October 2026

Quick Summary

Primary Symptoms

Shooting or burning pain from the buttock down the leg, numbness, tingling and weakness in the leg or foot.

Common Treatments

Staying active, pain relief, physiotherapy; injections or surgery for severe or long-lasting cases.

Risk Factors

Slipped disc, age-related spine changes, heavy lifting, long sitting and obesity.

OverviewSymptomsCausesTreatmentFAQ

Overview

The sciatic nerve runs from the lower back to the feet. When it's pressed or irritated, pain spreads down the leg.

Most sciatica gets better within 4 to 6 weeks. Loss of bladder or bowel control is an emergency.

Symptoms

Leg pain

Sharp or burning, worse with sitting or coughing.

Numbness and tingling

In the leg or foot.

Weakness

Difficulty moving the foot.

Emergency signs

Numbness around the genitals or loss of bladder control: call 112.

Causes & Risk Factors

Biological Causes

Pressure on the sciatic nerve roots, usually from a herniated disc or narrowing of the spinal canal.

Key Risk Factors

  • Slipped disc The most common cause.
  • Work and posture Heavy lifting and long sitting.
  • Age and weight Spine changes and obesity.

Management & Treatment

01. Stay active

Keep moving within comfort; avoid long bed rest.

02. Pain relief

Painkillers and medicines for nerve pain.

03. Physiotherapy

Exercises; injections or surgery if needed.

Frequently Asked Questions

Do I need an MRI?
Usually only if symptoms are severe, long-lasting or have warning signs.
Should I rest in bed?
Gentle activity helps recovery more than bed rest.

Sources and further reading

Last updated 21 October 2026. For more detail, see these trusted health organisations.