What does high blood sugar have on the human body?

High blood sugar can stimulate the blood vessels of the eyes, leading to microangiomas, fundus bleeding, exudation and other abnormal symptoms. In severe cases, it can cause blindness. High blood sugar can stimulate the kidneys, leading to abnormal diseases such as glomerulosclerosis, renal papilla necrosis and renal failure. High blood sugar can increase the probability of hyperlipidemia, coronary atherosclerosis and cerebral infarction.