If type 1 diabetes is not diagnosed and treated early, it can lead to serious complications such as diabetic ketoacidosis (DKA) and long-term health issues. DKA occurs when blood sugar levels become dangerously high due to a lack of insulin and severe dehydration. It is a medical emergency that requires immediate hospital treatment with insulin and fluids. Screening helps detect the risk of developing type 1 diabetes early and aims to prevent DKA.