It's not uncommon for a body part to go numb after staying in the same position for a long time, whether sitting or standing. This can be just the result of the excess pressure placed on the nerve or it can also be caused by neck or back trauma, a herniated disk in the spine, or a mass (such as a tumor or infection).Apr 19, 2010 read more
Answer: When the back of your leg goes numb, this is called sciatica. read more
Sometimes having numbness (pins and needles) in the feet after prolonged sitting can be a problem if you are putting pressure on the nerves in your legs and causing them to 'go to sleep.' You should make sure that you are working in a seat that is ergonomic and properly positioned to try to avoid this. read more
There are many sitting position that may contribute to your numb feet. Crossing your legs while sitting in a chair, sitting with your feet under you on the floor, squatting and even sitting normally in a chair may cause pressure on your leg nerves or arteries, making your leg, foot, or toes to fall asleep. read more