The symptoms of high blood glucose in pregnant women do not manifest themselves in the same way, and there are individual differences affected by the degree of blood glucose increase. In some cases of gestational diabetes, there is a slight increase in blood sugar and sometimes there are no specific symptoms. The increase of blood sugar in pregnant women can be harmful to both mother and child, so pregnant women need to know the symptoms of high blood sugar in advance. The symptoms of typical hyperglycemia are generally as follows: a. Eating more, that is, eating more. Since blood sugar cannot enter the cells and cannot be used by the cells, it will stimulate the hunger center of the brain to be excited and eat more, and there is no feeling of satiety after eating, resulting in a significant increase in the number of times and the amount of food eaten. Second, drink more that drink more water. Because after urinating more will make the water in the body reduce, and stimulate the excitement of the thirst center of the brain and drink more Three, more urine that is more urine. Not only refers to the increase in the number of urine, but also a significant increase in the volume of urine. Fourth, the body loses weight and weight loss. Due to the reduction of glucose utilization, fat decomposition, protein synthesis, etc., can cause wasting, if there are symptoms of polyuria, the loss of water in the body will aggravate the wasting symptoms. And the longer the disease, the higher the blood sugar, the more serious the disease, the more obvious the wasting. Fifth, there are also some symptoms of vision loss, eye fatigue, and numbness in the hands and feet. But for pregnant women the above symptoms do not necessarily appear at the same time, some manifest as repeated miscarriage, fetal malformation, susceptibility to infection, excessive fetal growth, susceptibility to other complications, such as hypertensive diseases, etc. If a pregnant woman has high blood sugar, she must adjust her blood sugar under the guidance of her doctor. Keep your blood sugar under control, otherwise it will affect the health of yourself and your fetus.