Diabetology is the clinical science of diabetes mellitus, its diagnosis, treatment and follow-up. It can be considered a specialised field of endocrinology. The term diabetologist is used in several ways. An Endocrinologist is a specialist who treats those with hormone imbalances from within the endocrine system, including thyroid disorders and diabetes. Many people who have trouble controlling their Type 2 Diabetes are often referred to an endocrinologist to have their medications reassessed. Diabetes is a disease that occurs when your blood glucose, also called blood sugar, is too high. Blood glucose is your main source of energy and comes from the food you eat. Insulin, a hormone made by the pancreas, helps glucose from food get into your cells to be used for energy.