Definition of Blood sugar, low

1. Type 2 Diabetes Slideshow Pictures
2. Diabetes and Foot Problems Slideshow
3. Take the Diabetes Quiz!

Blood sugar, low: The sugar here is glucose. Low blood glucose constitutes hypoglycemia. Hypoglycemia is only significant when it is associated with symptoms. It has many causes including drugs, liver disease, surgical absence of the stomach, pre-diabetes, and rare tumors that release excess insulin.