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Latest Edit: Iva Lloyd, ND 2017-10-11 (EDT)

Hyperglycemia refers to high blood glucose levels. It is often associated with diabetes. Glucose levels are a result of the breakdown of food, especially foods high in carbohydrates and sugars. Normally blood glucose levels are controlled by the hormone insulin which is released from the pancreas. The role of insulin is to move glucose from the bloodstream into every cell of the body, including muscle, fat, and liver cells, where the glucose is then used as a source of fuel or energy for metabolic processes.


Causes Dietary Factors, Dehydration, Lack of movement
See Also Endocrine Conditions, Diabetes, Insulin resistance, Obesity, Hypertension, Insomnia
Books Books on Endocrine Diseases
Articles Articles on Endocrine Conditions

Hyperglycemia reflects a lack of insulin production or insulin resistance, or both. The result is that the glucose stays in the blood and is not available by the cells as a fuel.


Some people have no or only mild symptoms, for others the symptoms of hyperglycemia include:

  • blurred vision
  • excess thirst
  • fatigue
  • frequent urination
  • hunger
  • weight loss


Complications of high blood sugar include:

Associated Conditions

Prolonged hyperglycemia leads to Diabetes. Other conditions associated with hyperglycemia include: