Diabetes Home > Type 2 Diabetes Symptoms

Increased thirst, frequent urination, frequent infections, and slow-healing wounds are common symptoms of type 2 diabetes. With this condition, symptoms tend to develop more gradually than with symptoms of type 1 diabetes. In fact, a person may experience symptoms that are so mild that they go unnoticed until the person has blurry vision, heart trouble, or other complications of diabetes.

Signs and Symptoms of Type 2 Diabetes: An Overview

Type 2 diabetes is a disease that occurs when your blood levels of glucose (a form of sugar) are too high. It is a serious disease that can lead to dangerous health problems. The symptoms of type 2 diabetes develop gradually and are not as noticeable as those in type 1 diabetes.

Common Type 2 Diabetes Symptoms

Common symptoms of type 2 diabetes include:
  • Feeling tired or ill
  • Unusual thirst
  • Frequent urination (especially at night)
  • Weight loss
  • Blurred vision
  • Frequent infections
  • Slow-healing wounds.

More Details About Type 2 Diabetes Symptoms

You may have had one or more of these symptoms before you found out you had diabetes. But many people do not find out they have type 2 diabetes until they have diabetes complications such as blurry vision or heart trouble.
Many people have no type 2 diabetes symptoms, or the symptoms can be so mild that they might not even notice them. More than five million people in the United States have type 2 diabetes and do not know it.
A blood test to check glucose (blood sugar) levels will reveal if you have pre-diabetes or diabetes.

Complications Associated With Type 2 Diabetes Symptoms

Over time, the high blood glucose levels caused by diabetes can lead to complications in the:
  • Eyes
  • Blood vessels
  • Feet
  • Nerves
  • Kidneys
  • Teeth
  • Skin
  • Heart.
Such complications can be prevented or delayed by keeping the following in a normal or close-to-normal range:
Some people develop a condition called insulin resistance before they develop type 2 diabetes symptoms. When insulin resistance is present, the body does not respond properly to the insulin it has released to lower blood glucose. As a result, the pancreas releases more insulin to try to keep up with the excess glucose. If the pancreas cannot produce enough insulin, over time, this leads to type 2 diabetes. Obesity, aging, and lack of exercise can all play a role in developing insulin resistance and heightening the risk for diabetes.
Written by/reviewed by:
Last reviewed by: Arthur Schoenstadt, MD
Last updated/reviewed:
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