Type 1 diabetes—which was once called juvenile diabetes or insulin-dependent diabetes—is usually diagnosed in childhood, adolescence, or as a young adult. Treating and managing type 1 diabetes requires daily monitoring and insulin injections. Find out more about the symptoms, causes, and treatment of the condition.

Type 1 Diabetes Basics

Illustration of Type 1 Diabetes
What Is Type 1 Diabetes?

Managing Type 1 Diabetes

A woman sits at a computer and looks at her watch as she eats food
Timing of Meals for Diabetes

Explore Type 1 Diabetes

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What Is Prediabetes?
Gynecologist doing gestational diabetes test for pregnant woman sitting by man at desk in medical clinic
What Is Gestational Diabetes?
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Type 1.5 Diabetes Is a Controversial Diagnosis—Here's What to Know
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What Causes Type 1 Diabetes?
senior indigenous woman checking her blood glucose level with a smartphone application.
How Is Type 1 Diabetes Treated?
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How Is Type 1 Diabetes Diagnosed?
Mature woman swiping continuous glucose monitor with smart phone application.
What Is Diabetic Ketoacidosis?
Woman helping her mother check blood sugar level at home
What Is Hypoglycemia?
Smiling pediatrician showing digital tablet to mother and baby in exam room
Can You Prevent Type 1 Diabetes?
Eric Dutcher stands with a medal around his neck next to words type 1 diabetes What I Wish I Knew
What I Wish I Knew About Exercising With Type 1 Diabetes
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'After Struggling to Find a Support Group for Travelers With Diabetes, I Created My Own'
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After Suffering From Diabetes Burnout, This Woman Started Her Own Foundation to Help Others With the Disease
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This Woman Needed Help Dealing With a Type 1 Diabetes Diagnosis—So She Came Up With an Alter Ego
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Type 1 Diabetes Didn't Stop This Opera Singer From Living Her Dream
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It Took 2 Years Before Doctors Finally Diagnosed Me With Type 1 Diabetes
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Type 1 Diabetes May Be Triggered By a Common Virus, Study Suggests
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This 25-Year-Old Is Living With Type 1 Diabetes—Here's What It's Like
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This Miss USA Contestant Showed Off Her Glucose Monitor to Prove an Important Point