Type 1 diabetes is a lifelong condition that develops when an "autoimmune reaction" destroys beta cells in the pancreas. Autoimmune reaction means that the body creates antibodies against its own cells. As a result, the pancreas stops producing insulin or cannot produce enough insulin on its own. Symptoms of type 1 diabetes are usually: Although the cause of diabetes is unknown, there are certain riskfactors that can increase the risk of developing type 1 diabetes. Riskfactors for type 1 diabetes include:Type 1 diabetes most often develops in childhood or adolescence. It was previously called juvenile-onset diabetes or Insulin-Dependent Diabetes Mellitus (IDDM). About 10% of people with diabetes have type 1. This content is for informational purposes only, and is not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified healthcare professional with any questions you may have regarding a medical condition.