The symptoms of type 1 diabetes usually develop over a short amount of time. Symptoms include the following:
If a person with type 1 diabetes goes without enough insulin for too long, the glucose level within the cells can fall dangerously low. When the cells in the body cannot get enough glucose, the body starts to burn fat for energy. This produces waste products known as ketones. High levels of ketones can result in too much acid in the body, called diabetic ketoacidosis. This condition causes:
Immediate medical attention is needed to prevent coma and death.