Type 2 diabetes is a common condition. A 2017 report from the Centers for Disease Control and Prevention (CDC) found that 30.3 million adults in the United States have diabetes. The report also estimated that another 84.1 million adults have prediabetes. People with prediabetes have higher-than-normal blood sugar levels, but doctors do not consider them to have diabetes yet. According to the CDC, people with prediabetes often develop type 2 diabetes within 5 years if they do not get treatment. The onset of type 2 diabetes can be gradual, and symptoms can be mild during the early stages. As a result, many people may not realize that they have this condition.
The early signs and symptoms of type 2 diabetes can include:
Frequent urination
When blood sugar levels are high, the kidneys try to remove the excess sugar by filtering it out of the blood. This can lead to a person needing to urinate more frequently, particularly at night.
Increased thirst
The frequent urination can result in the body losing additional water. Over time, this can cause dehydration and lead to a person feeling more thirsty than usual.
Always feeling hungry
People with diabetes often do not get enough energy from the food they eat. The digestive system breaks food down into a simple sugar called glucose, which the body uses as fuel. In people with diabetes, not enough of this glucose moves from the bloodstream into the body’s cells. As a result, people with type 2 diabetes often feel constantly hungry, regardless of how recently they have eaten.
Blurry vision
An excess of sugar in the blood can damage the tiny blood vessels in the eyes, which can cause blurry vision. This blurry vision can occur in one or both of the eyes and may come and go.
Slow healing of cuts and wounds
High levels of sugar in the blood can damage the body’s nerves and blood vessels, which can impair blood circulation. As a result, even small cuts and wounds may take weeks or months to heal.
Patches of dark skin
Patches of dark skin forming on the creases of the neck, armpit, or groin can also signify a higher risk of diabetes. These patches may feel very soft and velvety.
Itching and yeast infections
Excess sugar in the blood and urine provides food for yeast, which can lead to infection. Yeast infections tend to occur on warm, moist areas of the skin, such as the mouth, genital areas, and armpits. The affected areas are usually itchy, but a person may also experience burning, redness, and soreness.