Why Do Hands and Feet Get Numb: Many people suddenly start feeling tingling in their hands and feet. Hands and legs become numb. If you are also troubled by this problem of numbness, then there could be many reasons for it. Many times, sitting in the same position causes numbness in the hands and feet, which gets cured on its own within a few minutes. But if you have this problem again and again, then it can also be a sign of some disease. Many times this tingling and numbness is felt due to pressure on the nerves at night or while sitting. This can also happen due to deficiency of some vitamins, especially vitamin B12 in the body. In this video of YouTube channel KADAK, you can learn from Dr. Gaurav Batra, Neurosurgeon of Max Hospital (Vaishali) why hands and feet become numb, what are its causes, what is the treatment, due to which vitamin deficiency in the body does this happen?