Sciatica is a very common type of peripheral neuropathy that occurs if the sciatic nerve is damaged. The sciatic nerve is considered to be the longest nerve in the human body. It starts in the lower back and runs along the buttock and the back of the leg. The sciatic nerve allows for movement and sensation of the thigh, calf, knee, foot, and the toes.

The sciatic nerve can be damaged if there is a herniated disc in the lower part of the back that squeezes upon the roots of the nerve. If the sciatic nerve is damaged, the array of symptoms that can result include things such as dull, sharp, or shooting pain, tingling, weakness, numbness, and/or loss of reflexes in the legs. It can in certain cases, even result in bladder or bowel incontinence.

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