摘要
坐骨神經痛僅是一種症狀的描述，並非疾病的名稱。是指位於下腰部的坐骨神經，受到外力的壓迫而產生後下腰部疼痛並反射到病側下肢的情形。 臨床上，引起坐骨神經痛的原因很多，如腰椎間盤突出症、腰薦椎骨刺、腰椎管狹窄症等，大多數是在一定的解剖部位存在畸形或病理狀態，外加物理的、化學的、疾病的損害而誘發。最常見的誘發原因有外傷、姿勢不當、寒冷或受潮濕等。 坐骨神經痛可分為，根性坐骨神經痛、幹性坐骨神經痛、牽涉性坐骨神經痛。大部份的疼痛都會經過三個過程，急性期、亞急性期、慢性或恢復期。疼痛的性質有的鈍痛，有的刺痛，有的觸電似疼痛，有的呈燒灼性痛，有的覺下肢麻木沉重感。
並列摘要
Sciatica, a description of symptom, not the name of a disease, refers to the lumbar sciatic nerve being compressed by exogenous force which brings about lumbago and pain which radiates down the leg. The causes of sciatica include: prolapsed lumbar intervertebral disc; spinal canal stenosis of the lumbar vertebra and lumbar hyperosteogeny. Most conditions are due to a deformity or pathology of a specific anatomical feature, further aggravated by physical and chemical stress or damage done by disease. The most common factors are injury, posture, cold or dampness. Sciatica is classified into root sciatica, trunk sciatica, and referred sciatica. Sciatic pain usually goes through stages: acute stage; middle stage; chronic stage; and recovery stage. The quality of pain ranges from dull pain to sharp pain, electric pain, burning pain, or numbness.