Skip to content

Diabetes Health Center

Font Size

Prediabetes - Topic Overview

What is prediabetes?

Prediabetes is a term that is used when you are at risk for type 2 diabetes. It means that your blood sugar is higher than it should be. Most people who get type 2 diabetes have prediabetes first. The good news is that lifestyle changes may help you get your blood sugar back to normal and avoid or delay diabetes.

Type 2 diabetes is a lifelong disease that happens when the pancreas can't make enough insulin and/or the body's tissues can't use insulin properly. Insulin is a hormone that helps the body's cells use sugar (glucose) for energy. It also helps the body store extra sugar in muscle, fat, and liver cells.

Recommended Related to Diabetes

Does Prediabetes Lead to Diabetes?

In every issue of WebMD the Magazine, we ask our experts to answer readers' questions about a wide range of topics. In our January-February 2011 issue, we asked WebMD's diabetes expert, Michael Dansinger, MD, to answer a question about the link between prediabetes and diabetes. Q: At my last checkup, my doctor told me I have prediabetes. Does that mean I'll ultimately develop diabetes? A: Almost everyone who develops type 2 diabetes develops prediabetes first. But not everyone who has prediabetes...

Read the Does Prediabetes Lead to Diabetes? article > >

Without insulin, the sugar can't get into the cells to do its work. It stays in the blood instead. This can cause high blood sugar levels. A person has diabetes when the blood sugar stays too high too much of the time.

Over time, high blood sugar can cause serious problems with the eyes, heart, blood vessels, nerves, and kidneys. High blood sugar also makes a person more likely to get serious illnesses or infections.

What causes prediabetes?

Doctors don't know exactly what causes prediabetes. People who are overweight, aren't physically active, and have a family history of diabetes are more likely to get prediabetes. Women who have had gestational diabetes are also more likely to get prediabetes.

What are the symptoms?

Most people with prediabetes don't have any symptoms. But if you have prediabetes, you need to watch for signs of diabetes, such as:

How is prediabetes diagnosed?

A blood test can tell if you have prediabetes. You have prediabetes if:

    Next Article:

    Today on WebMD

    Diabetic tools
    Symptoms, diagnosis, treatment, and more.
    woman flexing muscles
    10 strength training exercises.
    Blood sugar test
    12 practical tips.
    Tom Hanks
    Stars living with type 1 or type 2.
    kenneth fujioka, md
    Can Vinegar Treat Diabetes
    Middle aged person
    Home Healthcare

    Prediabetes How to Prevent Type 2 Diabetes
    type 2 diabetes
    food fitness planner