坐骨神经由腰5～骶3神经根组成，坐骨神经痛是指坐骨神经通路及其分布区的疼痛综合征。即疼痛位于臀部、大腿后侧、小腿后外侧和足外侧。
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Sciatica is a term that describes symptoms of pain, numbness, and/or weakness that radiate along the sciatic nerve from the lower back to the buttocks and leg. The medical term for sciatica is lumbar radiculopathy.
“坐骨神经痛”这个术语用于描述从腰部向臀部和腿部沿坐骨神经走行区域的疼痛、 麻木、无力症状。“坐骨神经痛”的医学名称是腰椎神经根病。
The vast majority of sciatica symptoms result from lower back disorders between the L4 and S1 levels that put pressure on or cause irritation to a lumbar nerve root.
“坐骨神经痛”最常见的原因是腰4-骶1节段的腰椎疾患导致腰神经根受压或刺激。
Most commonly, sciatica is caused by a disc problem, such as a herniated disc that is pressing against a nerve root.
通常，坐骨神经痛由椎间盘病变引起，例如椎间盘疝出压迫了神经根。
It can also occur when a disc degenerates, which releases inflammatory proteins that irritate the adjacent nerve. There are many additional causes of sciatica.
椎间盘退变会释放炎性蛋白，刺激相邻神经，也可引起坐骨神经痛。坐骨神经痛还有许多其他的原因。
Sciatica symptoms are typically felt on only one side of the body. They may include a combination of leg and foot pain, weakness, tingling or numbness.
坐骨神经痛典型的感觉在身体的一侧，包括腿和足的疼痛、无力、针刺感以及麻木。
Sciatica pain is often described as searing or sharp, as opposed to achy or throbbing.
坐骨神经痛常被描述成撕裂样或尖锐的痛，而不是钝痛或跳痛。
Depending on where the sciatic nerve roots are compressed, symptoms may be felt in different areas of the leg and into the foot.
根据坐骨神经受压部位的不同，症状可出现于腿或足不同的位置。
It is important to remember that sciatica is a symptom of an underlying condition, not a diagnosis in itself.
重要的是，要记住坐骨神经痛是某种疾病的症状，本身不是诊断。
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