The sciatic nerve is the longest nerve in the body. It runs from your lower back, down through the buttock, hamstrings and into the lower leg. Irritation or pinching of your sciatic nerve can cause severe leg pain known as sciatica.

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The condition is most common in 30 to 50 year olds. It may be caused by the effects of general wear and tear, plus any sudden pressure on the discs that cushion the vertebrae of your lower (lumbar) spine.

Treatments will involve exercises and may include heat or cold applications.