A chronic disease that is based on a metabolic disorder in the human body due to a deficit in the production of its own insulin and the resulting high level of glucose in the blood. The main clinical manifestations of diabetes are considered to be extreme thirst, increased urination, high appetite, weakness, dizziness, and so on.

Diabetes mellitus is a chronic disease that is constantly progressing. This disease provokes complications such as strokes, liver and kidney failure, myocardial infarctions, gangrene, and blindness. Also, fluctuations in blood glucose levels can provoke hypoglycemic or hyperglycemic coma.

The heterogeneity of the nature of diabetes mellitus is explained by the fact that it is not one, but a whole complex of diseases of a metabolic nature, which are very different in etiology, clinic and pathogenesis.