Diabetic ketoacidosis is often the first sign of Type 1 diabetes in people who do not yet have other symptoms. It can also occur in someone who has already been diagnosed with Type 1 diabetes. Infection, injury, a serious illness, or surgery can lead to diabetic ketoacidosis in people with Type 1 diabetes. Missing doses of insulin can also lead to ketoacidosis.[19] | | | | | | | | |