What causes low blood sugar?

The main causes of low blood sugar include the following points: 1. **Insufficient sugar intake**: Prolonged hunger, excessive dieting, or heavy alcohol consumption without eating can lead to inadequate intestinal absorption of sugar, failing to meet the body's needs. 2. **Insufficient sugar production**: May be related to diseases such as liver disease or glycogen storage disease, which can affect the synthesis or breakdown of liver glycogen, resulting in reduced sugar production in the body. 3. **Excessive sugar consumption**: During intense exercise, fever, severe diarrhea, or in cases of malignant tumors, the body consumes excessive energy and sugar, which cannot be replenished in time. 4. **Excessive sugar conversion**: Overuse of hypoglycemic medications or conditions such as insulinoma can cause excessive conversion and consumption of sugar in the body, leading to a decrease in blood sugar levels.