How to prevent hypoglycemia? We all want to understand the problem, the following experts on the consultation of the patient’s case to add the following analysis of one of the cases: today consultation of a patient, due to cirrhosis of the esophageal varices bleeding hospitalized. After hospitalization, he was fasted and given intravenous fluids; he had hypoglycemia several times during the week of hospitalization, and his blood sugar was so low that it could not be measured. The patient’s medical history showed no history of hypoglycemia, he was thin, and insulin and C-peptide were checked to rule out hypoglycemia caused by insulinoma and other hyperinsulinemic lipids. Suggestions: When applying growth inhibitor to stop bleeding, there should be appropriate carbohydrates in intravenous nutrition, and if there is no diabetes, such patients do not need to add insulin when intravenous glucose drip is administered.