what causes numbness in leg
1 Numbness in the legs and feet can occur from simply sitting in one position, but it can also be caused by insect bites or medication. 2  Numbness of the feet can be a sign of serious conditions like fibromyalgia, multiple sclerosis, diabetes, or nerve damage. lack of vitamin B12 can cause numb sensations in the arms and legs, as well as loss of balance and weakness. B12 is naturally found in animal products and other high-protein foods. However, older adults and those with intestinal disorders may have more difficulty absorbing the vitamin.
Highlights. 1  Numbness in the legs and feet can occur from simply sitting in one position, but it can also be caused by insect bites or medication. 2  Numbness of the feet can be a sign of serious conditions like fibromyalgia, multiple sclerosis, diabetes, or nerve damage. lack of vitamin B12 can cause numb sensations in the arms and legs, as well as loss of balance and weakness. B12 is naturally found in animal products and other high-protein foods. However, older adults and those with intestinal disorders may have more difficulty absorbing the vitamin.