Diabetes is one of the leading causes of death and disability in the United States, affecting 18.2 million people (6.3 percent of the population). The main types of diabetes include type 1, type 2, and gestational diabetes. Type 1 is typically first diagnosed in children and teenagers, while type 2 occurs more frequently in adults. Gestational diabetes develops in some women during the late stages of pregnancy. Although this form usually goes away after the baby is born, a woman who has had it is more likely to develop type 2 later in life. Possible treatment options include losing weight, following a healthy food plan, or injecting insulin.