Sciatica

Sciatica is a term used to describe the symptoms of leg pain, tingling, numbness, or weakness that travel down the low back via the sciatic nerve in the back of the leg. Sciatica (sometimes known as radiculopathy) is a description of symptoms, not a diagnosis. A herniated disc, spinal stenosis, degenerative disc disease, and spondylolisthesis can all cause sciatica.

Posterior view of the entire body labeling the sciatic nerve in the right buttock.

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The Truth About Sciatica

Learn the essential medical facts about the causes and specific symptoms of sciatica.

Posterior view of the lower body showing sciatic pain in the legs.

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The Truth About Sciatica: Genetics, Low Back Problems, Piriformis, Arthritis, and More

Sciatica occurs when specific nerve roots in the lower back are inflamed, irritated, and/or mechanically compressed. Certain causes of sciatica may also have a genetic origin.

Posterior view of the pelvis showing pain radiating down the left leg.

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Types of Sciatic Nerve Pain

Sciatica may cause different types of pain in the thigh, leg, and foot. The pain may be accompanied by neurological symptoms such as numbness, weakness, and/or other altered sensations in the affected regions.

Posterior view of the lower body showing sciatic numbness in the legs.

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Understanding Sciatica Symptoms: Pins and Needles, Numbness, Icy, and Burning

The symptoms of sciatica vary widely among individuals and may result in mild to severe discomfort.

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What Is Piriformis Syndrome?

Piriformis syndrome occurs when the piriformis muscle irritates the sciatic nerve and causes pain along the back of the leg and foot.

Anterior view of the pelvis labeling L4, L5, S1, S2, S3 and the sciatic nerve.

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What You Need to Know About Sciatica

Sciatica is nerve pain that is caused by irritation and/or compression of the sciatic nerve. Sciatica originates in the lower back, radiates deep into the buttock, and travels down the leg.

Posterior view of the lower back labeling cauda equina.

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When Sciatica Pain Is a Medical Emergency

The signs and symptoms of certain serious medical conditions may mimic sciatica. If left untreated, it may lead to complications, which can be life-threatening.