https://tgp.com.ph/medicine-diabetes-ph/ Diabetes, or diabetus milletus as known in the field of medicine, is a metabolic disorder in the human body. Without the hormone insulin produced by the pancreas, which is necessary for breaking down glucose, a simple sugar and the most common carbohydrate, there is sugar in the blood as it travels through the body, hence the term “high blood sugar”. Having glucose in the bloodstream is not good, as this means one has diabetes.