With the rising living standard of the people, the chronic disease like diabetes becomes popular, and the timely understanding and mastering of one’s own blood glucose level is an indispensable part in the prevention and treatment of diabetes. Many patients come to consult how to buy a home blood glucose meter, so here is a brief description of some considerations for the purchase of a home blood glucose meter, in order to help. First of all, many patients have certain misunderstandings about the purpose of using home blood glucose meter, some of them think that since hospitals and communities have blood glucose monitoring equipment, why do they need to buy a blood glucose meter at home? Although the blood glucose monitoring equipment in hospitals and communities is more convenient, it is not as convenient as having a blood glucose meter at home after all, and diabetic patients often need to monitor their blood glucose immediately when they have fever and cold, diarrhea and vomiting, and hypoglycemic symptoms, which can help diagnose the disease and adjust the glucose-lowering plan, and these times often occur in the early morning and at night. When the hospital community is closed, it is more convenient to have a home blood glucose meter at such times. Some patients think that the data measured by the home blood glucose meter is not accurate, and there are differences between the blood glucose meter and the intravenous blood glucose meter and the hospital blood glucose meter. First of all, we need to clarify that the value obtained from the blood glucose meter is capillary blood glucose, which is not the same testing method or the same testing object as the hospital’s intravenous blood glucose, so there are bound to be certain differences; in addition, the testing methods used by various blood glucose meters are not the same, so they cannot be compared with each other; there is also the fact that home blood glucose meters need to pay attention to many times, such as The test paper adjustment code, regular quality control and test paper validity time limit will affect the test results. At present, there are only two purposes for the home blood glucose meter to monitor blood glucose, the first is to carry out timely blood glucose testing when there are some unexpected situations, such as omission and misuse of hypoglycemic drugs and insulin, combined with fever and diarrhea and other acute diseases, and most importantly, when there are symptoms of hypoglycemia; the second is to carry out blood glucose monitoring at regular intervals to provide doctors with the basis for adjusting the blood glucose control program. Secondly, there are about two methods of blood glucose testing for the blood glucose meters that we can usually buy in the market, one is the photochemical method, which is the method of reflecting the value through the color change after the reaction between some chromogenic substances on the test paper and blood glucose through the instrument collection; the other is the electrochemical method, which is the method of displaying the value through the tiny current change after the redox reaction between the test paper and blood glucose. The other is the electrochemical method, which is the method of displaying the value after the instrument senses the amplification of the small current change after the redox reaction between the test paper and blood sugar. At present, the general mainstream blood glucose meter basically adopts electrochemical method for testing, because the inter-batch error of this method is small and the test paper is not easily polluted by the external environment. However, the photochemical method blood glucose meter is cheaper in the market, while the electrochemical method blood glucose meter is more expensive, so it can be purchased according to personal economic conditions and use habits. Once again, when the blood glucose meter detects blood glucose, in order to minimize the difference between batches of test strips, there will be a matching code with the test strips, which needs to be inserted or entered into the blood glucose meter in advance before the test strips are enabled, and many patients will ignore this point to lead to the questioning of the test results. In order to facilitate the patients and reduce the operation error, there are also blood glucose meters without code adjustment listed, which can be considered for purchase according to personal habits. In addition, the energy supply of the blood glucose meter generally has two types of models using No. 7 alkaline batteries and button batteries, and it is generally believed that the current supply of button batteries is smoother and less prone to detection errors caused by unstable current, but No. 7 alkaline batteries are easier to buy than button batteries, so the purchase of blood glucose meters with two types of batteries is also a decision that needs to be made after balancing various conditions. In addition, the most important point is to measure whether the after-sales service of the blood glucose meter manufacturer is convenient, such as whether the purchase of blood glucose test paper is convenient, so as to avoid the dilemma of “organic paperless”; such as whether the blood glucose test paper is independently packaged, generally speaking, it is believed that the independently packaged test paper is not easy to be opened by man during the warranty period because of moisture. It is generally believed that individually wrapped test strips are less likely to deteriorate during the warranty period due to artificial opening and moisture, which affects the test results; for example, the home blood glucose meter should be regularly maintained by quality control, which requires special quality control solution, which can generally be obtained at the sales counter of the blood glucose meter or by calling the after-sales service hotline. It is the ideal and wish of every diabetic patient to buy a satisfactory and practical blood glucose meter to start their own safe sugar control journey, so they need to refer to various indicators and make reasonable purchases in combination with themselves.