What's New Virtual Tour Testing Your Blood Sugar Level You need to know how well you are taking care of your diabetes. You need to know if you are lowering your high blood sugar. The best way to find out is to test your blood to see how much sugar is in it. If your blood has too much or too little sugar in it, your doctor may need to change your eating, exercise, or medicine plan.
Some people test their blood once a day.
Others test their blood three or four times a day. Your doctor may want you to test before eating, before bed, and sometimes in the middle of the night. Ask your doctor how often and when you should test your blood sugar. How to Test Your Blood Sugar To test your blood, you need a small needle called a lancet. You also need special blood testing strips that come in a bottle.