Hyperglycemia is a condition in which your blood sugar, or blood glucose, is too high. It is especially a problem for people with diabetes. An HbA1c blood test can confirm the diagnosis. Symptoms include thirst, fatigue, weight loss, blurry vision, frequent urination, and more. Follow the links below to find WebMD's comprehensive coverage about how hyperglycemia is caused, its symptoms, how to treat it, and much more.
Too High or Low Blood Sugar
Sometimes, no matter how hard you try to keep your blood sugar in the range your doctor has advised, it can be too high or too low. Blood sugar that is too high or too low can make you very sick. Here's an article on how to handle these emergencies.
Do I Need an Oral Glucose Tolerance Test?
Find out how the oral glucose tolerance test can help diagnose diabetes. And see why anyone who is pregnant needs this test.
The Truth About Sweets and Diabetes
Sweets are off-limits to people with diabetes, right? Get the facts from the experts on this and other diabetes myths.
Diabetic Ketoacidosis (DKA)
WebMD explains diabetic ketoacidosis, a serious condition that results from having high blood sugars for too long.
Dieting With Diabetes? Watch Out!
When you have diabetes and start a diet, controlling blood sugar levels is vital.
Diabetes-Friendly Diet: 7 Foods that Control Blood Sugar
A healthy diet can help you keep your type 2 diabetes in check. Here are seven types of foods to help control blood sugar, spare you from boredom, and stave off hunger.
How Does Type 2 Diabetes Affect Memory?
Studies show that people with type 2 diabetes are at increased risk for Alzheimer's disease, an expert says. Here's what you can do to lower that risk.
Slideshows & Images
A Visual Guide to Type 2 Diabetes
WebMD offers a pictorial overview of the symptoms, diagnosis, and treatment of type 2 diabetes.
Celebrities With Diabetes
This WebMD slideshow focuses on celebrities with type 1 or type 2 diabetes including Larry King, Salma Hayek, and Nick Jonas from The Jonas Brothers.
Slideshow: 12 Lifestyle Tips to Avoid Diabetes Complications
Slideshow: Diabetes and Exercise