There are more types of blood glucose test strips, which have different shelf lives, with some types of blood glucose test strips having a shelf life of up to 18 months. However, blood glucose test strips are generally considered to be valid for 3 months after opening. In order to avoid the failure of blood glucose test strips, they should be stored reasonably, avoiding direct sunlight, avoiding refrigeration, and should be labeled with the time of opening after opening. It is recommended that the shelf life be carefully understood when purchasing, and test strips should be purchased with a shelf life of three months before the expiration date. Blood glucose test strips can be used by healthcare professionals or for self-testing of blood glucose at home. You should know the correct way of operation to avoid errors that may affect the test results. It is recommended to buy blood glucose meter and blood glucose test strips from regular pharmacies or hospitals. It is advisable to use up the test strips within the expiry date and to master the correct way of measuring blood glucose under the guidance of doctors.