Symptoms of Type 2 diabetes


General information about symptoms of Type 2 diabetes: The symptom information on this page attempts to provide a list of some possible symptoms of Type 2 diabetes. This symptom information has been gathered from various sources, may not be fully accurate, and may not be the full list of symptoms of Type 2 diabetes. Furthermore, symptoms of Type 2 diabetes may vary on an individual basis for each patient. Only your doctor can provide adequate diagnosis of symptoms and whether they are indeed symptoms of Type 2 diabetes.

List of symptoms of Type 2 diabetes: The list of symptoms mentioned in various sources for Type 2 diabetes includes:

Symptoms of Type 2 diabetes: The symptoms of type 2 diabetes develop gradually. They are not as sudden in onset as in type 1 diabetes. Some people have no symptoms. Symptoms may include fatigue or nausea, frequent urination, unusual thirst, weight loss, blurred vision, frequent infections, and slow healing of wounds or sores. 1

Many people have no signs or symptoms. Symptoms can also be so mild that you might not even notice them. Five million people in the United States have type 2 diabetes and do not know it. Here is what to look for:

  • increased thirst
  • increased hunger
  • fatigue
  • increased urination, especially at night
  • weight loss
  • blurred vision
  • sores that do not heal

Sometimes people have symptoms but do not suspect diabetes. They delay scheduling a checkup because they do not feel sick. Many people do not find out they have the disease until they have diabetes complications, such as blurry vision or heart trouble. It is important to find out early if you have diabetes because treatment can prevent damage to the body from diabetes.2

The symptoms of type 2 diabetes develop gradually and are not as noticeable as in type 1 diabetes. Symptoms include feeling tired or ill, frequent urination (especially at night), unusual thirst, weight loss, blurred vision, frequent infections, and slow healing of sores. 3

People with type 2 diabetes often do not have symptoms, but you might have one or more of these signs:

  • being very thirsty

  • urinating often

  • feeling very hungry or tired

  • losing weight without trying

  • having sores that are slow to heal

  • having dry, itchy skin

  • having tingling or numbness in the feet or hands

  • having blurred vision.


Some people with diabetes feel "run down" or have symptoms that may go unrecognized. Others have symptoms such as feeling thirsty, urinating frequently, losing weight, feeling tired, having blurred vision, getting skin infections, and having slow healing cuts and bruises. These problems should be reported to a doctor right away.4

More symptoms of Type 2 diabetes: In addition to the above information, to get a full picture of the possible symptoms of this condition and its related conditions, it may be necessary to examine symptoms that may be caused by complications of Type 2 diabetes, underlying causes of Type 2 diabetes, associated conditions for Type 2 diabetes, risk factors for Type 2 diabetes, or other related conditions.

Medical articles on symptoms: These general reference articles may be of interest:

1. excerpt from Diabetes Overview: NIDDK
2. excerpt from Am I at Risk for Type 2 Diabetes: NIDDK
3. excerpt from Diabetes: NWHIC
4. excerpt from Dealing With Diabetes - Age Page - Health Information: NIA

Last revision: April 10, 2003

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