There are two types of diabetes: type 1 and type 2.

Type 1 diabetes

Type 1 diabetes, which used to be called juvenile diabetes, is an autoimmune disease that causes your body to make either no or very little insulin because the body attacks specific cells in the pancreas that make it. Type 1 diabetes cannot be prevented but can be treated by injecting insulin into the body.

Type 2 diabetes

In type 2 diabetes, the body does not recognize or respond to the insulin it makes. Type 2 diabetes is caused by a combination of genetic and lifestyle factors. Obesity and overweight are the leading causes of type 2 diabetes. Type 2 diabetes is more common in adults but can also happen in children. With the rise of childhood obesity, the number of children diagnosed with type 2 diabetes has been increasing in recent years.

Many of the signs and symptoms of diabetes are similar for type 1 and type 2. Talk to your doctor if you notice any of the following symptoms, which could mean diabetes.

  • Increased thirst
  • Increased hunger
  • Urinating more than normal
  • Blurry vision
  • Crankiness or being easily irritated
  • Extreme tiredness
  • Unexplained weight loss (symptom of type 1 diabetes)
  • Tingling, pain or feeling numb in the hands and feet (symptom of type 2)