Under normal circumstances, the human body can maintain a balance between the source and the destination of blood sugar through the two major regulatory systems of hormone regulation and neuroregulation, so that blood sugar is maintained at a certain level. However, under the combined action of genetic factors and environmental factors, the two major regulatory functions occur. Disturbance, there will be an increase in blood sugar levels.

What diseases can high blood sugar cause?

Retinopathy : With fundus hemorrhage or retinal detachment, patients may experience blindness symptoms;

Diabetic nephropathy: If it is a patient in the early stage of diabetic nephropathy, there may be symptoms of increased foam in the urine. If it has reached the stage V of diabetic nephropathy, that is to say, the uremic stage, the patient may have uremia-related symptoms, such as nausea, vomiting, Increased blood pressure, increased serum potassium, or even oliguria, anuria and other symptoms;

Diabetic peripheral neuropathy : The patient may experience numbness, coolness, and pain at the end of the limbs, and the attack becomes more serious at night;

Macrovascular complications: there may be myocardial infarction, pain in the precordial area, dyspnea, and cerebral infarction caused by diabetes.

Diabetic foot : Patients may experience a series of symptoms such as foot ulceration, necrosis, and infection.

Lactic acidosis: Mainly due to the accumulation of a large amount of lactic acid, a sugar metabolite of anaerobic glycolysis in the body, leading to hyperlactatemia, and further reduction of body fluid pH, resulting in lactic acidosis

Hypoglycemia: Hypoglycemia is a common complication. Mild hypoglycemia can cause patients to feel palpitation, trembling hands, cold sweats and other symptoms. Severe hypoglycemia complications can also lead to coma or even loss of life.

The doctor reminds: if the blood sugar is in this range, there is basically no need to worry, you may wish to check yourself

The normal blood sugar standard should be fasting blood sugar, fasting blood plasma or serum blood sugar value of 3.9-6.1mmol/L, and serum or plasma blood sugar value of 3.9-7.8mmol/L two hours after a meal, which is the most standard blood sugar value.

The diagnostic criteria for diabetes are that when the fasting blood glucose is ≥7.0 mmol/L, and the blood glucose two hours after meals is ≥11.1 mmol/L, the blood glucose should be detected by venous blood plasma or serum samples, not fingertip blood. Standard, call it diabetes.

Pre-diabetes is when the fasting blood sugar is between 6.1-7.0mmol/L, and the blood sugar two hours after a meal is between 7.8-11.1mmol/L, which is called prediabetes, and can also be called impaired fasting blood sugar and sugar. Abnormal tolerance.

There are also differences in blood sugar standards according to different ages:

Adolescent stage: should be kept within 4.4~6.1mmol/L.

Young and middle-aged stage: For people between the ages of 18 and 60, the blood sugar should be kept at about 4.4~6.1mmol/L.

Elderly stage: For the elderly over 60 years old, the value is in the range of 7.0~9.0mmol/L.