Sensations Of Needles and Pins
A chronic symptom of a prolonged vitamin B12 deficiency is tingling sensations of needles and pins due to nerve damage. Nerve damage happens over time, as vitamin B12 is a significant contributor in the metabolic pathway that leads to the production of myelin. Myelin is a fatty substance that surrounds the nerve ending and provides insulation and protection to these nerves as well. Without enough vitamin B12, myelin produces differently and the nervous system is unable to function properly. As a result, there is prickling sensation in feet and hands and is medically known as paresthesia. The neurological symptoms appearing due to vitamin B12 deficiency occur side by side with anemia. According to a study, almost 285 of the people have neurological symptoms due to vitamin B12 deficiency.