Type 1 Diabetes
Last Updated: July 3, 2026
Key Points
- Body cannot produce insulin
- Blood sugar levels become too high
- Requires lifelong insulin treatment
- Not preventable by lifestyle changes
Overview
Type 1 diabetes is an autoimmune condition where your body's immune system mistakenly attacks and destroys the cells in the pancreas that produce insulin. Insulin is a vital hormone that allows glucose (sugar) from food to enter your cells for energy. Without insulin, glucose builds up in the bloodstream, leading to high blood sugar levels. This condition can develop at any age but is most commonly diagnosed in children and young adults. It is different from Type 2 diabetes, which is often linked to lifestyle factors and insulin resistance. Managing Type 1 diabetes involves lifelong insulin therapy, careful monitoring of blood sugar levels, and making informed choices about diet and physical activity to maintain good health and prevent complications.
Signs and Symptoms
- Frequent urination
- Increased thirst
- Extreme hunger
- Unexplained weight loss
- Fatigue and weakness
- Blurred vision
- Slow-healing sores or frequent infections
Things That Increase the Risk
- Family history of type 1 diabetes
- Presence of certain genes
- Specific viral infections
- Geographic location
Diagnosis
- Random blood sugar test
- Fasting blood sugar test
- HbA1c test (glycated hemoglobin)
- Autoantibody tests (to confirm type 1)
- Urine test for ketones
Treatment & Management
- Insulin injections or insulin pump therapy
- Regular blood glucose monitoring
- Carbohydrate counting for meal planning
- Balanced diet and regular exercise
- Routine medical check-ups
Prevention
- No known way to prevent type 1 diabetes
- Early detection of symptoms is vital
- Strict blood sugar control to prevent complications
- Regular monitoring for associated autoimmune conditions
Available Treatments
Explore our range of treatment options for Type 1 Diabetes:
Contents
Quick Info
Affects
People of all ages, often children
Prevalence
About 5-10% of all diabetes cases
Diagnosis
Blood tests for glucose and antibodies
Treatment
Lifelong insulin therapy
Medically Reviewed
Dr. Vijay Bhat
Orthopedic Surgeon · Apollo Hospitals, Chennai
Reviewed on July 3, 2026
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