Insulin is a peptide substance, consisting of various amino acids, and it should be stored with attention to the ambient temperature and protected from light as much as possible to avoid denaturation of insulin. I. Environmental temperature 1. For unopened insulin, it is usually recommended to store it in an ambient temperature of 2-8℃. For example, unopened insulin can be kept in the freezer of the refrigerator, but not in the freezer of the refrigerator, which will lead to insulin denaturation and affect the biological effect. In the freezer, it is recommended not to put it against the wall, as it will cause the risk of insulin freezing. Try not to put it on the refrigerator door, which will easily lead to shaking of insulin and is not conducive to long-term preservation. 2. For opened insulin in use, it can be stored at room temperature, not necessarily in the refrigerator freezer every time. If the room temperature is around 20℃, the storage time of insulin is usually around 1 month. Be careful not to alternate insulin between hot and cold environments repeatedly, otherwise the biological effect of insulin will be affected. Patients who need to carry insulin for long-distance travel are advised not to check it in during long-distance travel, such as by air, and it is better to carry it with you. It is better to carry insulin with you because if there is a change in the temperature of the airplane room during the check-in process, it will easily lead to insulin denaturation, and carrying it with you will ensure that the insulin is at a low and normal temperature. In addition, you can also use ice packs when carrying, try not to let insulin stored in too high a temperature, so as not to cause failure. Second, try to avoid light and do not store it under sunlight to avoid causing insulin to fail. In the process of using insulin, you should also pay attention to the injection method and monitor blood sugar. If insulin is not injected properly or rarely monitor blood sugar in general, it will not achieve the purpose of good blood sugar control.