causes for low blood sugar
But low blood sugar, or hypoglycemia, can also be an ongoing problem. It occurs when the level of sugar in your blood drops too low to give your body energy. Ongoing problems with low blood sugar can be caused by: 1  Medicines. 2  Diseases of the liver, kidneys, or pancreas.  Metabolic problems.
To correct this problem, you likely take insulin or other drugs designed to lower blood sugar levels. If you take too much insulin relative to the amount of glucose in your bloodstream, it can cause your blood sugar level to drop too low, resulting in hypoglycemia.