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Sciatica

Sciatica is a pain that spreads down through your buttock and your leg. Sciatica is nerve pain from irritation of the sciatic nerve. The sciatic nerve is the largest nerve in the body. Sciatica pain is typically felt from the low back to behind the thigh and radiating down below the knee. Treatments for sciatica depend on the underlying cause and the severity of the pain.

Causes

Sciatica is caused by irritation of the root(s) of the lower lumbar and lumbosacral spine.
Additional common causes of sciatica include:

  • Lumbar spinal stenosis (narrowing of the spinal canal in the lower back)
  • Degenerative disc disease (breakdown of discs, which act as cushions between the vertebrae)
  • Spondylolisthesis (a condition in which one vertebra slips forward over another one)
  • Pregnancy

Other things that may make your back pain worse include being overweight, not exercising regularly, wearing high heels, or sleeping on a mattress that is too soft.

Symptoms

Common symptoms of sciatica include:

  • Pain in the rear or leg that is worse when sitting
  • Burning or tingling down the leg
  • Weakness, numbness, or difficulty moving the leg or foot
  • A constant pain on one side of the rear
  • A shooting pain that makes it difficult to stand up

Sciatica usually affects only one side of the lower body. Often, the pain extends from the lower back all the way through the back of the thigh and down through the leg. Depending on where the sciatic nerve is affected, the pain may also extend to the foot or toes.
For some people, the pain from sciatica can be severe and debilitating. For others, the sciatica pain might be infrequent and irritating, but has the potential to get worse.