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Diabetes-Related High and Low Blood Sugar Levels Diabetes-
related blood sugar levels When you have diabetes, you may have
high blood sugar levels (hyperglycemia) or low blood sugar
levels (hypoglycemia) from time to time. A cold, the flu, or
other sudden illness can cause high blood sugar levels. You will
learn to recognize the symptoms and distinguish between high and
low blood sugar levels. Insulin and some types of diabetes
medicines can cause low blood sugar levels. Learn how to
recognize and manage high and low blood sugar levels to help you
avoid levels that can lead to medical emergencies, such as
diabetic ketoacidosis or dehydration from high blood sugar
levels or loss of consciousness from severe low blood sugar
levels. Most high or low blood sugar problems can be managed at
home by following your doctor's instruct