The exact cause of Type 1 diabetes is not yet known, however it is thought that certain environmental factors or viruses as well as genetic factors may have an impact. Unlike Type 2 diabetes, it cannot be prevented. We also know that the development of Type 1 diabetes is not linked with lifestyle, although maintaining a healthy lifestyle is important in helping to manage Type 1 diabetes.
Type 1 diabetes usually occurs in childhood, however it can occur at any age.