The term ‘double diabetes’ (DD) refers to the cases where the patient demonstrates characteristics as a result of a mixture of T1D and T2D. In a large epidemiological study, it was seen that a total of 25.5% of patients suffering from T1D additionally presented the metabolic syndrome. In this issue of Diabetes News Nucleus, let us discuss in detail about the Double Diabetes: When T1D and T2D coexist in the same individual”.