Hyperglycemia is actually a very common complication in diabetes. It occurs before diabetes is diagnosed, and continues to take place now and then during the treatment. It can occur gradually and without symptoms, or occur rapidly and emergency care is needed.

Causes of hyperglycemia are almost contrary to those caused hypoglycemia:too much food,too little insulin or oral medication,less activity or exercise than usual,more stress than usual,infection, illness or injury. Notably, some emotion fluctuate also lead to hyperglycemia, such as anger and anxiety.

Symptoms of Hyperglycemia may include fatigu,dry mouth and skin,increased thirst,increased hunger,blurry vision,unexplained weight loss, and increased urination. But sometimes there's no distinct feelings, especially when the blood glucose rises gradually.

When hyperglycemia is suspected,check blood glucose more frequently than usual and record the results. These records will help doctors adjust your treatment to avoid hyperglycemia.If possible, go to a nearby clinic or hospital for urine ketones check(essential if you have Type 1) and see your doctor is ketones are present.Take your insulin or oral agent as prescribed. Follow your meal plan, adding more calorie-free fluids and fibers. Follow your exercise plan only if ketones are absent.

When blood sugar level increases rapidly, the ill feelings may be intensive. In such cases, go to emergency as soon as possible.