A Blood Glucose Monitor is a medical device used to measure the level of glucose in a person's blood. It is commonly used by individuals with diabetes to help manage their condition. The device typically requires a small drop of blood, which is obtained by pricking the skin with a lancet. The blood is then placed on a test strip, and the monitor provides a reading of the glucose level. These monitors can vary in features, with some offering advanced options like data tracking and connectivity to smartphones. Regular monitoring helps individuals maintain their blood sugar levels within a target range, reducing the risk of complications associated with diabetes, such as those related to insulin and diet.