A fasting venous blood glucose of 5.6 mmol/L is usually normal. However, it is abnormal and high for women during pregnancy. The normal value of fasting venous blood glucose is between 3.9mmol/L ~ 6.0mmol/L. For diabetic patients, the goal of glycemic control is usually 4.4mmol/L ~ 7.0mmol/L. Therefore, fasting venous blood glucose 5.6mmol/L is normal. However, for pregnant women, fasting blood glucose ≥ 5.1mmol/L is considered gestational diabetes mellitus. Therefore, fasting venous blood glucose 5.6 mmol/L is not normal and should be intervened as soon as possible. If you have elevated blood glucose, you need to consult a doctor as soon as possible, and the doctor will formulate a diagnosis and treatment plan according to your condition, so as not to delay your condition.