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Diabetes: Type 1


An in-depth report on the causes, diagnosis, and treatment of type 1 diabetes.

Alternative Names

Insulin-dependent Diabetes Mellitus; Juvenile Diabetes


The process that destroys the insulin-producing beta cells can be a long and insidious one. At the point when insulin production bottoms out, however, type 1 diabetes usually appears suddenly and progresses quickly. Warning signs of type 1 diabetes include:

  • Frequent urination (in children, a recurrence of bed-wetting after toilet training has been completed).
  • Unusual thirst, especially for sweet, cold drinks.
  • Extreme hunger.
  • Sudden, sometimes dramatic, weight loss.
  • Weakness.
  • Extreme fatigue.
  • Blurred vision or other changes in eyesight.
  • Irritability.
  • Nausea and vomiting (acute symptoms).

Children with type 1 diabetes may also be restless, apathetic, and have trouble functioning at school. In severe cases, diabetic coma may be the first sign of type 1 diabetes.


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