Top Test your blood sugar every day 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. Ask your doctor how often and when you should test your blood sugar.
Some people test their blood once a day.
Others test their blood three or four times a day. To test your blood sugar, you need a small needle called a lancet. You also need special blood testing strips that come in a bottle. Your doctor or diabetes educator will show you how to test your blood. The strip changes color in about a minute.