If you have Type 2 diabetes, your body’s cells can’t properly take up sugar (glucose) from the foods you eat. If left untreated, Type 2 diabetes can cause such health problems as heart disease, kidney disease and stroke. You can manage this disease by making lifestyle changes, taking medications and/or insulin and seeing your provider for regular check-ins. Show
OverviewWhat is Type 2 diabetes?Type 2 diabetes is a disease where your body can’t use energy from food properly. Your pancreas produces insulin (a hormone) to help your cells use glucose (sugar). But over time your pancreas makes less insulin and the cells resist the insulin. This causes too much sugar to build up in your blood. High blood sugar levels from Type 2 diabetes can lead to serious health problems including heart disease, stroke or death. Type 1 vs. Type 2 diabetes: What’s the difference?Type 2 diabetes is not the same as Type 1 diabetes. In Type 1 diabetes, your pancreas doesn’t make any insulin. In Type 2, your pancreas doesn’t make enough insulin, and the insulin it is making doesn’t always work as it should. Both types are forms of diabetes mellitus, meaning they lead to hyperglycemia (high blood sugar). Type 2 diabetes usually affects older adults, though it’s becoming more common in children. Type 1 diabetes usually develops in children or young adults, but people of any age can get it. Who is at risk of developing Type 2 diabetes?You’re more likely to develop Type 2 diabetes if you:
How common is Type 2 diabetes?Type 2 diabetes is the most common form of diabetes. About 1 in 10 Americans have the disease. It’s the 7th leading cause of death in the U.S. Symptoms and CausesWhat causes Type 2 diabetes?Type 2 diabetes develops when the pancreas makes less insulin than the body needs, and the body cells stop responding to insulin. They don’t take in sugar as they should. Sugar builds up in your blood. When cells don’t respond to insulin, this is called insulin resistance. It's usually caused by:
What are the symptoms of Type 2 diabetes?Symptoms of Type 2 diabetes tend to develop slowly over time. They can include:
What are the complications of high blood sugar levels?Potential complications of high blood sugar levels from Type 2 diabetes can include:
Rarely, Type 2 diabetes leads to a condition called diabetes-related ketoacidosis (DKA). DKA is a life-threatening condition that causes your blood to become acidic. People with Type 1 diabetes are more likely to have DKA. Diagnosis and TestsHow is Type 2 diabetes diagnosed?The following blood tests help your healthcare provider diagnose diabetes:
glucose test200 or higherA1c test6.5% or higherOral glucose tolerance test200 or higher Management and TreatmentHow is Type 2 diabetes managed?There’s no cure for Type 2 diabetes. But you can manage the condition by maintaining a healthy lifestyle and taking medication if needed. Work with your healthcare provider to manage your:
What should a Type 2 diabetes meal plan include?Ask your healthcare provider or a nutritionist to recommend a meal plan that’s right for you. In general, a Type 2 diabetes meal plans should include:
Will I need medication or insulin for Type 2 diabetes?Some people take medication to manage diabetes, along with diet and exercise. Your healthcare provider may recommend oral diabetes medications. These are pills or liquids that you take by mouth. For example, a medicine called metformin helps regulate the amount of glucose your liver produces. You can also take insulin to help your body use sugar more efficiently. Insulin comes in the following forms:
PreventionHow can I prevent Type 2 diabetes?You can prevent or delay Type 2 diabetes by:
Regular checkups and screenings with your healthcare provider can also help you keep your blood sugar in check. Outlook / PrognosisWhat is the outlook for Type 2 diabetes?If you have Type 2 diabetes, your outlook depends on how well you manage your blood glucose level. Untreated Type 2 diabetes can lead to a range of life-threatening health conditions. Diabetes requires lifelong management. Living WithWhen should I call my doctor?It’s important to monitor diabetes very closely if you’re sick. Even a common cold can be dangerous if it interferes with your insulin and blood sugar levels. Make a “sick day” plan with your healthcare provider so you know how often to check your blood sugar and what medications to take. Contact your provider right away if you experience:
A note from Cleveland Clinic Type 2 diabetes is a disease where your body doesn’t make enough insulin and can’t use sugar the way it should. Sugar, or glucose, builds up in your blood. High blood sugar can lead to serious health complications. But Type 2 diabetes is manageable. Regular exercise and a healthy diet can help you manage your blood sugar. You may also need medication or insulin. If you have Type 2 diabetes, you should monitor your blood sugar at home regularly and stay in close communication with your healthcare provider. Share Facebook Twitter LinkedIn Email Print Last reviewed by a Cleveland Clinic medical professional on 03/25/2021. References
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How long can you have type 2 diabetes without knowing it?Signs and symptoms of type 2 diabetes often develop slowly. In fact, you can be living with type 2 diabetes for years and not know it.
What are the first warning signs of type 2 diabetes?Early Signs and Symptoms of Type 2 Diabetes. More thirst. When sugar builds up in your blood, your kidneys work overtime to get rid of it. ... . More hunger. ... . Peeing often. ... . Dry mouth. ... . Weight loss without trying. ... . Fatigue. ... . Blurry vision. ... . Headaches.. What are the 3 most common symptoms of undiagnosed diabetes?Common symptoms of diabetes: Urinating often. Feeling very thirsty. Feeling very hungry—even though you are eating.
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