A 50-year-old woman with a history of diabetes and hypertension presents with a chief complaint of left hand numbness. She reports a 6-month history of left hand numbness and tingling, primarily ...

One minute you’re engrossed in an activity. The next, your arm, hand, leg or foot is numb, tingling, burning or itching. This sensation, which many can relate to, is commonly called pins and needles.

Vitamin B12 deficiency can manifest as tingling or numbness, particularly in the extremities, due to damage to the myelin ...