In this paper, we address double diabetes, a phenomenon infrequently discussed amongst experts. It is said to come to be when individuals suffering from type I diabetes manifest with signs and symptoms suggestive of type II diabetes. Double Diabetes (DD) is a peculiar phenomenon that has manifested itself as a possible occurrence in those suffering from type I diabetes. Despite the necessity for more studies that elaborate on how double diabetes comes to be, it seems as if increased BMI and increased insulin doses may be hypothesized as a goal. Other hypotheses, such as the immunological deficiency playing a role require more studies.