Type 1 diabetes, also known as juvenile diabetes, occurs when your body produces little or no insulin. Learn about symptoms, diagnosis, treatment, and more.

Woman experiencing a hyperglycemia (High blood sugar) episode
Hyperglycemia Episodes: A Glance at the Short and Long-Term Effects
Boxed Novo Nordisk Inc. Levemir brand insulin
What to Do If Your Insulin Is Being Discontinued
Tresiba vs. Lantus: Similarities and Differences
Tresiba vs. Lantus: Similarities and Differences
Cropped view of an person wearing tan pants and a tan and white striped shirt inserting a test strip into a glucometer
Diabetes Mellitus: What a Diagnosis Means for Your Health
Father and son preparing vegetables
Type 1 Diabetes Diet: Focusing on What You Can Eat
A person wears an artificial pancreas on their abodomen
Artificial Pancreas: What to Know
Woman standing in nature looking at a mountain range
Life Expectancy With Type 1 Diabetes
Overhead shot of bowl with berries, tomatoes, eggs, and avocado
A Guide to Low Carb Diets for Diabetes
A hand with glucose monitor testing their blood and a different arm with a glucose monitor attached to the arm
Type 1 vs. Type 2 Diabetes: Different Insulin Effects
A person receives an injection in their stomach
Humalog vs. NovoLog: Similarities and Differences
Side view of Caucasian woman at home in casual clothing with insulin pump at her waist holding smart phone to swipe glucose sensor for measurement.
Managing Diabetes Is Expensive. These Tips Can Help Keep Costs Down
drug news illo
New Type 1 Diabetes Treatment Eliminates Need for Insulin
Woman checking blood sugar
Type 1 Diabetes and Hypoglycemia: Causes and Treatments
diabetes-friendly thanksgiving dinner table
Your Complete Guide to a Diabetes-Friendly Thanksgiving
An illustration of a runner looking at their phone.
Stroke and Diabetes: What Is the Relationship?
Testing for ketones with blood ketone meter
Ketone Levels: Where Should I Be and How Can I Check?
Person giving insulin with an insulin pen
What Is an Insulin Pen and How Is It Used?
A person eating from a bowl in front of a paused screen in a home environment
Diabetic Stomach Pain: Causes and Treatment
Close up of someone's hands holding a a blood sugar testing device - stock photo
Diabetes Insipidus vs. Diabetes Mellitus: What Are the Differences?
Cutting a slice of bread
Type 1 Diabetes and Celiac Disease
low carb snacks
Lower Carbohydrate Snack Ideas for People With Type 1 Diabetes
bowl of turmeric powder
The Effect of Turmeric on Diabetes
a sick woman lying on a sofa
What Is a Blood Sugar Crash?
woman experiencing shortness of breath
Diabetes and Shortness of Breath: What's the Connection?
Dilated pupil/blue eye.
What Is a Diabetes Eye Exam?
woman pricking her finger for blood sugar test
The Three P’s of Diabetes
Young adult man with cold, flu, running nose holding tea and looking at medication instructions
Can Infection Increase Your Blood Sugar Levels?
Female nurse is taking blood of a senior patient at hospital
What Happens When A1C Levels Are Too High?
high blood sugar
How to Lower Your Blood Sugar Immediately
Woman sitting with a plate of food and glucose monitor.
Blood Sugar Levels After Eating: What's Normal and Abnormal
Woman at a table taking her blood sugar level with a pen
Why It's Important to Monitor Glucose Levels
Worried senior man working at laptop
Can Stress Cause High Blood Sugar?
fatigued woman
What to Know About Diabetes Fatigue
Untreated Diabetes Symptoms, an illustration of anatomy affect by untreated diabetes
How Untreated Diabetes Affects Your Body
Women in bed in the morning drinking water
How to Lower Fasting Blood Sugar Naturally
Blood sample tube for ketone test
What Is Diabetic Ketoacidosis (DKA)?
The doctor checks at the diabetic a level of sugar in blood
Causes of Brittle Diabetes and How to Manage It
Jay Cutler
Celebrities With Type 1 Diabetes
man learning how to use a glucometer
How to Use a Glucometer
Woman checks blood sugar levels with device.
Latest Medication Options for Diabetes
Doctor discussing symptoms and test results with patient
Early Signs of Diabetes: Watch for These Symptoms
woman monitoring glucose levels
Is Diabetes Genetic?
The feet of man with diabetes, dull and swollen.
Joint Pain Associated With Diabetes
A woman lying in bed with a dog
Why Autoimmune Diseases Affect More Women Than Men
Doctor Examining Patients Thyroid
Thyroid Disease and Diabetes
Endocrinologist and patient discuss diabetes
When to See an Endocrinologist for Diabetes
Eating in kitchen late at night
Diabetic Hyperphagia: Why You’re Always Hungry
woman who is hyperglycemic
How to Control Hyperglycemia With Diet
Person checking blood sugar
How to Spot a Blood Sugar Spike and What to Do
Illustration of a urine test - Illustration by Katie Kerpel
What Sugar in Urine Could Mean
doctor talking to patient, surgeon talking to patient
High Blood Sugar Levels After Surgery
young woman checking her phone at night
High Blood Sugar at Night and What to Do About It
Young woman checking glucose level at home
Can You Have High Blood Sugar Without Diabetes?
woman rubbing her eyes
What Causes Blurry Vision After Eating?
Man suffering from high blood sugar or hyperglycemia
Symptoms of High Blood Sugar in People Without Diabetes
person having a seizure
Hyperglycemia-Related Seizures
blood glucose test
How Hyperglycemia Is Diagnosed
Midsection Of Man Smoking Cigarette
Causes and Risk Factors of Hyperglycemia (High Blood Glucose)
Fatigue
Hyperglycemia Symptoms
woman testing blood glucose at home
Hypoglycemia vs. Hyperglycemia