Why does my hand keep falling asleep?

Go see your primary care doctor for evaluation! Any persistent symptoms like this really do need to be evaluated to make sure there is nothing serious going on that needs treatment. One of the most common causes of numbness and tingling in the fingers of the hand is something that is called carpal tunnel syndrome. This is a condition in which the median nerve, which runs down the center of the wrist, becomes inflamed or pinched. This is usually due to an overuse injury, such as typing at a keyboard all day long. Carpal tunnel syndrome can usually be diagnosed just with a physical examination, and most cases can be treated with rest, anti inflammatory medications and wrist splinting. Another cause of numbness and tingling in the fingers would be trouble with blood flow to the hand. This would be a rare problem, in the absence of known medical problems like heart disease or diabetes, but in needs to be ruled out nevertheless. Finally, more general nerve damage, called neuropathy, may be a complication of several nutritional deficiencies as well as several chronic medical problems, especially diabetes. Start by setting up an appointment with your primary care doctor as soon as possible!