Sciatica: how to relieve it, and when to worry

Sciatica is pain that travels from the lower back or buttock down the leg, caused by irritation of the sciatic nerve, and for most people the best approach is to stay as active as the pain allows and follow a graded exercise programme, because the great majority of cases settle over weeks without surgery. It can be intense and alarming, but it is usually not dangerous, and bed rest tends to make it worse rather than better. National guidance recommends staying active and exercise-based care over passive treatments. A small number of warning signs, though, do need urgent medical attention, and knowing them matters.

What causes sciatica

Sciatica is a symptom rather than a diagnosis in itself: it is nerve pain down the leg caused by something irritating or compressing the sciatic nerve or its roots, most often a disc problem or tightness in the lower back. That is why the pain is felt in the leg even though the source is usually the spine. Understanding this helps explain why treatment focuses on settling the irritation and restoring movement, rather than on the leg where the pain is felt.

Staying active is the treatment

The instinct with severe back-and-leg pain is to rest completely, but for sciatica that usually backfires. Prolonged rest allows things to stiffen and deconditioning to set in, and the evidence and national guidance favour staying as active as you can and following a graded exercise and movement programme. NICE recommends exercise as a core part of managing low back pain and sciatica, and advises against relying on passive treatments alone. Practical pain management, staying mobile, and gradually rebuilding movement and strength is what helps most cases settle over the following weeks.

The warning signs that need urgent help

This is the part everyone with sciatica should know. Seek urgent medical attention if you develop numbness around the saddle area (between the legs), difficulty passing or controlling urine or bowels, numbness or weakness in both legs, or rapidly worsening weakness, as these can indicate a rare but serious problem (cauda equina syndrome) that needs emergency assessment. Also seek prompt advice for severe, unrelenting pain, or pain following significant trauma. These are uncommon, but they are the reason sciatica should be taken seriously rather than simply endured.

Why Hanbury Health is different

Sciatica is a good example of where accurate assessment and the right pathway matter, and where we are set up to provide both. Rehabilitation is overseen with surgical-level knowledge and close links to local spinal and orthopaedic consultants, so you get active, guideline-based treatment for the common cases, prompt screening for the rare warning signs, and a fast route to a consultant opinion or imaging when it is genuinely needed. Rather than either being told to rest or being over-investigated, you get the measured, evidence-based approach sciatica actually calls for. See how our physiotherapy service in Milton Keynes is set up, or read our companion pieces on physiotherapy for back and neck pain and when to see a physiotherapist .