Type 1 Diabetes

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

Explore Type 1 Diabetes

All Hyperglycemia Glucose Monitoring
The feet of man with diabetes, dull and swollen.
Diabetic Arthropathy: Charcot Foot, Arthritis, and More
Medically reviewed by Do-Eun Lee, MD
Blood sample tube for ketone test
What Is Ketoacidosis?
Medically reviewed by Ana Maria Kausel, MD
Girl getting a vaccine
Is There a Vaccine for Type 1 Diabetes?
Medically reviewed by Ana Maria Kausel, MD
Checking blood glucose and ketones for diabetic ketoacidosis
Diabetic Ketoacidosis (DKA): Overview and More
Medically reviewed by Do-Eun Lee, MD
Blood tests to be analyzed for anion gap
Anion Gap: Purpose, Indications, Interpreting Results
Medically reviewed by Ana Maria Kausel, MD
Boy checking his blood sugar
Diabetes Mellitus: Overview and More
Medically reviewed by Do-Eun Lee, MD
Osteoporosis
Diabetes and Bone Disease: What Is the Link?
Medically reviewed by Ana Maria Kausel, MD
These late nights are not working for me
Diabetes and Shift Work: Coping, Support, and Living Well
Medically reviewed by Rochelle Collins, DO
diabetic nephropathy
Diabetic Nephropathy: Overview and More
Medically reviewed by Matthew Wosnitzer, MD
Person wearing an insulin pump
Lipohypertrophy: Symptoms, Causes, Diagnosis, Treatment, and Coping
Medically reviewed by Ana Maria Kausel, MD
Man checking sugar level with glucometer
What is a Certified Diabetes Care and Education Specialist?
Fact checked by James Lacy
Basqimi (glucagon nasal powder)
Basqimi Nasal (Glucagon): Uses, Side Effects, Dosages, Precautions
Medically reviewed by Mary Choy, PharmD
Young woman drinking bottle of water, outdoors, side view
Polydipsia: Overview and More
Medically reviewed by Do-Eun Lee, MD
Running with an insulin pump
Running With Type 1 Diabetes: What You Need to Know
Medically reviewed by Lindsey Waldman, MD, RD
Glucose Level Blood Test
Overview of Diabetes Mellitus
Medically reviewed by Danielle Weiss, MD
Taking a break mid-run
A Guide to Exercise and Type 1 Diabetes
Medically reviewed by Do-Eun Lee, MD
man testing blood sugar
Facing Diabetes Discrimination at Work
Medically reviewed by Ana Maria Kausel, MD
lab tests
Islet Cell Transplant: Donor Selection, Surgery, and Recovery
Medically reviewed by Ana Maria Kausel, MD
Woman holding insulin syringe
What Is Rapid-Acting Insulin?
Medically reviewed by Ana Maria Kausel, MD
Girl wearing insulin pump and sensor device.
How a Sensor-Augmented Insulin Pump (SAP) Works
Medically reviewed by Joel Forman, MD
Woman injecting herself with insulin
LADA: Overview and more
Medically reviewed by Do-Eun Lee, MD
Diabetic girl using blood glucose meter
How to Use a Glucometer for Blood Sugar Monitoring
Fact checked by Sheeren Jegtvig
External insulin pump
Insulin Pump Therapy: Overview and More
Medically reviewed by Ana Maria Kausel, MD
Managing Type 1 Diabetes in Teens
Medically reviewed by Danielle Weiss, MD
insulin and syringe
How to Safely Store Your Insulin
Medically reviewed by Lindsey Waldman, MD, RD
Doctor showing young patient how to use diabetes pen
How Type 1 Diabetes Is Diagnosed
Medically reviewed by Do-Eun Lee, MD
Diabetic patient testing her blood at the beach
What to Know When Traveling With Type 1
Fact checked by Dale Brauner
Woman alone looking through window
Type 1 Diabetes: Coping, Support, and Living Well
Medically reviewed by Lindsey Waldman, MD, RD
Woman checking her insulin pump
How Type 1 Diabetes Is Treated
Medically reviewed by Lindsey Waldman, MD, RD
Doctor showing young patient how to use diabetes pen
Type 1 Diabetes: Symptoms, Causes, Diagnosis, Treatment
Medically reviewed by Lindsey Waldman, MD, RD
Cheerful eye doctor is working with a patient
Understanding the Complications of Type 1 Diabetes
Medically reviewed by Lindsey Waldman, MD, RD
thyroid tests, blood tests, TSH test, thyroid stimulating hormone test
How to Read Blood Ketone Test Results
Medically reviewed by Lindsey Waldman, MD, RD
Sportswoman checking pulse
Weight Training and Exercise for Type 1 Diabetes
Medically reviewed by Lindsey Waldman, MD, RD
Jay Cutler
Famous People Living With Type 1 Diabetes
Fact checked by Lisa Sullivan, MS
See through body where the pancreas is highlighted
Pancreas: Anatomy, Function, and Diagnosis
Medically reviewed by Ana Maria Kausel, MD
Female nurse with male patient in hospital
HHNS: Symptoms, Causes, Diagnosis, and Treatment
Medically reviewed by Do-Eun Lee, MD
Woman checking blood sugar level and using mobile phone in train
Livongo: Meter and Coaching for Diabetes Management
Medically reviewed by Lindsey Waldman, MD, RD
diabetes test
The Best At-Home Diabetes Tests for 2021
Fact checked by Sean Blackburn
Woman doing insulin injection
Tips for Insulin Injection Site Rotation
Medically reviewed by Lindsey Waldman, MD, RD
Doctor Examining Patients Thyroid
The Connection Between Thyroid Disease and Diabetes
Medically reviewed by Do-Eun Lee, MD
blood glucose test
How Hyperglycemia Is Diagnosed
Medically reviewed by Ana Maria Kausel, MD
Checking blood sugar
What Happens If Sugar Is Given During Hyperglycemia
Medically reviewed by Michael Menna, DO
Midsection Of Man Smoking Cigarette
Hyperglycemia: Causes and Risk Factors
Medically reviewed by Michael Menna, DO
Older man exercising
How Hyperglycemia Is Treated
Medically reviewed by Ana Maria Kausel, MD
Fatigue
Hyperglycemia: Signs, Symptoms, and Complications
Medically reviewed by Ana Maria Kausel, MD
Nurse observing the blood
Magnesium Test: Uses, Side Effects, Procedure, Results
Medically reviewed by Ana Maria Kausel, MD
Picture of a woman wearing an insulin pump AKA artificial pancreas
What Is an Artificial Pancreas Delivery System?
Medically reviewed by Lindsey Waldman, MD, RD
Woman checking her blood sugar after excercise
How to Choose a Blood Glucose Meter
Medically reviewed by Lindsey Waldman, MD, RD
Woman checking her blood sugar
Why Glucose Monitoring Is Important for Diabetes
Medically reviewed by Lindsey Waldman, MD, RD
Blood Sugar Test Equipment Of White Background
Facts on Alternate Blood Sugar Testing Sites
Medically reviewed by Lindsey Waldman, MD, RD
OneTouch UltraLink
Blood Sugar Meters That Communicate With Insulin Pumps
Medically reviewed by Lindsey Waldman, MD, RD
woman testing blood sugar with meter
Blood Sugar Meters by Smallest Sample Sizes
Medically reviewed by Lindsey Waldman, MD, RD
Person having a blood test
Understanding Estimated Average Glucose (eAG)
Medically reviewed by Ana Maria Kausel, MD
Diabetic blood sugar level testing kit and insulin
The Best Diabetic Supply Companies of 2021
Fact checked by Sean Blackburn