Type 1 diabetes

Type 1 diabetes, once known as juvenile diabetes or insulin-dependent diabetes, is a chronic condition in which the pancreas produces little or no insulin, a hormone needed to allow sugar (glucose) to enter cells to produce energy. The far more common type 2 diabetes occurs when the body becomes resistant to insulin or doesn't make enough insulin.

Various factors may contribute to type 1 diabetes, including genetics and exposure to certain viruses. Although type 1 diabetes usually appears during childhood or adolescence, it also can begin in adults.

Despite active research, type 1 diabetes has no cure. But it can be managed. With proper treatment, people with type 1 diabetes can expect to live longer, healthier lives than did people with type 1 diabetes in the past.

Symptoms Causes Risk factors Complications Prevention

Type 1 diabetes signs and symptoms can come on quickly and may include:

  • Increased thirst
  • Frequent urination
  • Bedwetting in children who previously didn't wet the bed during the night
  • Extreme hunger
  • Unintended weight loss
  • Irritability and other mood changes
  • Fatigue and weakness
  • Blurred vision
  • In females, a vaginal yeast infection

When to see a doctor

Consult your doctor if you notice any of the above signs and symptoms in you or your child.

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