May 15, 2024 · Key points With type 1 diabetes, your pancreas doesn't make insulin or makes very little insulin. People with type 1 diabetes need to take insulin every day. Currently, type 1 …

Type 1 diabetes (T1D), or type 1 diabetes mellitus, is an autoimmune disease that occurs when the body's immune system destroys beta cells in the pancreas that produce the hormone …

When you have type 1 diabetes, your immune system mistakenly treats the beta cells in your pancreas that create insulin as foreign invaders and destroys them. When enough beta cells …

Mar 27, 2024 · Type 1 diabetes is a chronic condition that affects the insulin making cells of the pancreas. It's estimated that about 1.25 million Americans live with it. People with type 1 …

Oct 28, 2025 · Type 1 diabetes is a chronic (lifelong) autoimmune disease that causes a lack of insulin, an essential hormone. It requires daily management with insulin injections and glucose …

Learn about type 1 diabetes and its causes, diagnosis, and treatment. You can’t prevent type 1 diabetes, but you can manage it with insulin and healthy habits.

Jun 25, 2025 · Type 1 diabetes occurs when some or all of the insulin-producing cells in the pancreas are destroyed. This leaves the patient with little or no insulin. Without insulin, sugar …

Jan 10, 2025 · Type 1 diabetes is a lifelong (chronic) disease in which there is a high level of sugar (glucose) in the blood. Type 1 diabetes can occur at any age. It is most often diagnosed …

Apr 19, 2024 · Type 1 diabetes happens when your immune system destroys cells in your pancreas that make insulin. Learn more about the symptoms, causes, diagnosis, treatment, …

Experts don't know what causes type 1 diabetes. Genetic and environmental factors may play a role. The body's immune system attacks and destroys the cells in the pancreas that make …