A member asked:

Sometimes the back of my thigh goes numb and tingly and this feeling shoots down the back of my thigh. what causes this?

11 doctors weighed in across 3 answers
Dr. Shane Parmer answered

Specializes in Vascular Surgery

Most likely this relates to compression of the sciatic nerve or its roots in the lumbar portion of the spinal cord. It is a fairly common "non-vascular" problem and depending on the severitly may require further evaluation and treatment.

Answered Jun 5, 2014

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Dr. Ian Stein answered

Specializes in Neurology

It may be coming dom the lower back. Either a disc or compression at the sciatic notch.

Answered May 16, 2019

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Dr. Ted King answered

Specializes in

There is a vein that travels down the back of the thigh next to the sciatic nerve called the sciatic vein. The sciatic vein closes before birth in most people but, on occasion, that vein will stay open and become a varicose vein that you can't see. If they don't find disc trouble, it might be worthwhile to get an ultrasound of the deep veins in the back of your thigh.

Answered Dec 13, 2014

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