Diabetes is a metabolic disease. An increase in blood sugar is called diabetes. A person is diagnosed with diabetes when fasting blood sugar rises above 126 mg / dl or when satiety blood sugar rises above 200 mg / dl. High blood sugar can be defined as the part of an iceberg seen above water in diabetes. In fact, there are very serious problems that can occur in many organs and tissues that we do not accompany diabetes. Unless timely precautions are taken and blood sugar is not controlled, diabetes can cause permanent damage to many organs and tissues, especially the eyes, kidneys, nerve endings, heart and brain vessels and leg veins, especially with the negative effects of sugar on the veins.