Explore evidence-informed articles about sciatica, including symptoms, causes, diagnosis and treatment options. Learn how lumbar disc herniation, spinal stenosis and nerve-root irritation can cause pain, numbness or weakness extending from the lower back into the leg. This category also examines exercises, manual care, spinal decompression therapy, medication, injections and surgery to assist readers in understanding available approaches and preparing for an appropriate clinical evaluation. Content is educational and does not replace personalized medical advice.