Lancets are small surgical tool used to obtain a drop of blood, typically from the finger, for testing sugar level in the body. While lancets are uncomfortable, they play a major part in diabetic life. Finding a thin, least invasive diabetes lancet can greatly reduce the pain of pricking the finger. When choosing lancets, it’s important to purchase disposable lancets. Never reuse a lancet; always look for single-use lancets or you will run a risk of getting infection or misleading results.