L4 vs L5 vs S1 Sciatica: Pattern Limits and Warning Signs
Quick answer: L4, L5, and S1 are nerve roots. Typical symptom regions overlap, so a pain map cannot reliably identify which root is affected. Use the comparison to describe symptoms to a clinician, not to diagnose yourself or choose exercises. When to seek urgent help With back or leg symptoms, new loss of bladder or … Read more