Hypoglycemia is related to diabetes in the following ways: i. Pre-diabetes can manifest as pre-meal hypoglycemia, so diabetes is one of the important considerations when looking for the cause of hypoglycemia. Second, diabetic patients need to be strictly prevented from hypoglycemia during treatment, and a severe hypoglycemia can be fatal to the patient. Third, when a diabetic patient’s blood sugar remains high, it is not necessarily a true persistent hyperglycemia, but may also be the occurrence of hypoglycemia, resulting in a rebound increase in blood sugar. Fourth, the risk of hypoglycemia occurs differently with different hypoglycemic drugs. An important consideration in judging the safety of hypoglycemic drugs is the risk of hypoglycemia of the drug. Fifth, hypoglycemia increases the risk of various complications in diabetic patients, so blood glucose control should vary from person to person and should not be too strict.