Sciatica vs Referred (Somatic) Pain: How to Tell the Difference — and What to Do This Week

‘Sciatica’ is often used to describe any pain that travels into the buttock or leg. True sciatica is usually nerve root irritation. But many leg symptoms are referred (somatic) pain from the spine, joints, discs, muscles, or ligaments — painful, but not primarily a nerve problem.

Sciatica (nerve root pain): common features

• Pain that travels below the knee (common, not mandatory)

• Pins and needles, numbness, or altered sensation

• Sharp, electric, burning pain

• Symptoms change with spine positions (bending, sitting, coughing/sneezing)

• Weakness (e.g., foot feels ‘slappy’, trouble with heel/toe walking)

Referred (somatic) pain: common features

• Pain mainly in buttock/thigh and feels deep/achey

• Sore and stiff rather than electric/burning

• No numbness/tingling and strength feels normal

• More linked to load and movement than nerve-type symptoms

What to do this week (a simple 7‑day plan)

• Find your ‘settling position’ (2–5 minutes, a few times/day): some settle with gentle back bends, others with knees-to-chest — aim for what calms symptoms.

• Keep walking, but dose it: short, frequent walks beat one long flare-up walk.

• Temporarily reduce repeated flare triggers (often prolonged sitting, heavy lifting, long car journeys).

• Choose gentle movements that reduce symptoms during/after (individualised).

• Prioritise sleep and stress management — nerve pain is often more reactive when you’re run down.

Imaging (MRI) and sciatica

Disc bulges are common even in people without pain. Imaging can be useful, but symptoms and examination findings usually guide the best plan more than a scan report alone.

Red flags — seek urgent medical help now if you have

• New bladder/bowel changes or numbness around genitals/saddle area

• Rapidly worsening leg weakness

• Fever, unexplained weight loss, history of cancer, or feeling very unwell

• Severe, unrelenting pain that doesn’t change with position and is getting worse

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Medical disclaimer

This article is general information and is not a substitute for individual medical advice, diagnosis, or treatment. If you’re worried about your symptoms, seek medical help. If you have severe or worsening symptoms, or any red flags listed below, seek urgent assessment.