Low blood sodium does not usually cause hypoglycemia. Hyponatremia refers to a lower than normal concentration of serum sodium ions, and is usually called hyponatremia when the serum sodium concentration is less than 135 mmol/L. Hyponatremia may be triggered by long-term use of diuretics, dehydrating agents, or when there is vomiting or diarrhea. Hypoglycemia is defined as a blood glucose concentration of less than 2.8 mmol/L with symptoms such as panic, cold sweats, and hunger pangs. Hyponatremia has the potential to cause insufficient circulating blood volume, which may lead to a decrease in blood pressure. However, hyponatremia does not usually cause excessive insulin secretion or interfere with carbohydrate absorption, and usually has little effect on blood glucose, which usually does not lead to hypoglycemia. If you have hyponatremia or abnormal blood glucose, you should go to the hospital in time to see a doctor, clarify the cause of the disease and treat it actively.