symptom
    Pain & Inflammation

    Sciatica

    Radiating pain along the sciatic nerve from lower back to legs.

    TL;DR

    Sciatica is nerve-root pain: it travels below the knee, often with tingling or numbness, usually from a disc bulge. The evidence strongly supports staying active over resting — most cases improve markedly within 6-12 weeks regardless of treatment. Alpha-lipoic acid has preliminary neuropathic pain data but nothing definitive for sciatica. Loss of bladder or bowel control, numbness in the saddle region, or progressive leg weakness is a surgical emergency.

    Overview

    Pain radiating from the lower back or buttock down the leg along the sciatic nerve path — usually from a disc pressing on a nerve root. Most episodes improve substantially over 6-12 weeks with staying active, but the pattern of red flags determines who needs urgent assessment.

    Root Causes

    Evidence synthesis: Disc herniation compressing a nerve root causes most sciatica, and natural-history studies show most herniations resorb over months — explaining why 6-12 week improvement is the rule. Guidelines consistently recommend staying active and avoiding bed rest, with evidence that prolonged rest worsens outcomes; structured exercise and physiotherapy have moderate trial support. Imaging is deliberately deferred in guidelines because disc bulges are common in pain-free people and early MRI does not improve outcomes. For neuropathic leg pain, pregabalin and gabapentin are commonly used though trial results in sciatica specifically are mixed (a notable pregabalin RCT in sciatica was negative). Alpha-lipoic acid has positive neuropathic pain trials in diabetic neuropathy and small preliminary studies in radicular pain, but evidence for sciatica per se is early-stage. Cauda equina syndrome — bladder/bowel dysfunction, saddle anaesthesia, bilateral weakness — is the emergency requiring same-day surgical assessment.

    How It's Diagnosed

    When to See a Doctor

    Seek urgent care for numbness around the groin or genitals, loss of bladder or bowel control, or progressive leg weakness - these suggest cauda equina syndrome. See a clinician for pain beyond 6 weeks or after significant trauma.

    Supplements Studied For This

    Supporting Research

    Frequently Asked Questions

    How long does sciatica last?
    Most episodes improve substantially within 6-12 weeks, largely because disc herniations tend to shrink and resorb over time. That natural history is why guidelines advise staying active and deferring scans - most people recover without them. Pain persisting beyond 12 weeks, or worsening rather than improving, earns imaging and specialist review.
    Should I rest or keep moving with sciatica?
    Keep moving - this is one of the most evidence-consistent messages in back care. Bed rest beyond a day or two worsens outcomes. Gentle walking, avoiding prolonged sitting, and graded activity beat rest in trials. Physiotherapy with structured exercise has moderate supporting evidence. The goal is calm, progressive movement, not pushing through sharp pain.
    When is sciatica an emergency?
    Cauda equina syndrome: new loss of bladder or bowel control, numbness in the saddle region (inner thighs, buttocks, genitals), or rapidly progressive weakness in both legs. Any of these means same-day emergency assessment - the window for preventing permanent damage is measured in hours to days. One-sided pain and tingling alone, however miserable, is not that emergency.
    Do supplements help sciatica?
    Evidence is thin. Alpha-lipoic acid has genuine trials in diabetic nerve pain and small early studies in nerve-root pain, but nothing definitive for sciatica. B12 and B-complex vitamins are marketed for nerve health without sciatica-specific trial support. The interventions with real evidence are movement, time, and - when pain persists - targeted medical treatment.

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    This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.