What are the symptoms of HYPERglycemia? Laura Joseph July 15, 2019 18:01 Updated Follow The symptoms of hyperglycemia include increased thirst, frequent need to urinate, and fatigue. http://www.diabetes.org/living-with-diabetes/treatment-and-care/blood-glucose-control/hyperglycemia.html Related articles What is an A1C? What are the symptoms of HYPOglycemia? Comments 0 comments Please sign in to leave a comment.