Childhood diabetes has been on the rise in the United States over the last several years. Inactivity, obesity and a family history of diabetes all contribute to Type 2 Diabetes in children, especially in minorities. One possible warning sign of diabetes is acanthosis nigricans, which is a condition that results in darkening of the skin. The Mayo Clinic has an article on their website which has detailed information on the symptoms, causes, tests and other useful information regarding acanthosis nigricans. To learn more about acanthosis nigricans, click on the link below to visit the Mayo Clinic website.