Type 1 diabetes —

A disease in which the body does not make insulin. People with type 1 take insulin every day.

Type 2 diabetes —

A disease in which the body does not make sufficient amounts of insulin. People with type 2 diabetes manage their condition by using a meal plan, being active, and taking diabetes medicines (oral medication or insulin).

Prediabetes —

Type 2 diabetes is often preceded by prediabetes — this means blood sugar levels are high but not high enough to be diagnosed as diabetes. Managing blood sugar in this phase can delay or prevent the onset of type 2 diabetes.

Gestational diabetes —

A type of diabetes diagnosed in pregnancy. Women with gestational diabetes are more likely to develop type 2 diabetes later in life. Gestational diabetes typically disappears after delivery.