Pregnant women with blackness in front of the eyes and false sweating may have to consider the following causes: first, whether the pregnant woman has eaten particularly little, or in early pregnancy there is violent vomiting and other situations, this situation is prone to the occurrence of hypoglycemia. If hypoglycemia occurs, the patient will have symptoms such as darkness before the eyes, sweating and panic, and should be given sugar supplementation treatment immediately. Secondly, patients in mid- or early pregnancy can have low blood pressure, which is also very common and should be measured. If the blood pressure is lower than 90/60 mmHg, it indicates that the pregnant woman is suffering from low blood pressure. In this case, the pregnant woman should be treated immediately with rehydration, and the pregnant woman should improve her diet to clarify the cause of the low blood pressure and treat it. Thirdly, we should consider whether the pregnant woman has anemia. If there is anemia, the patient will also have symptoms such as darkness before the eyes, false sweating and panic. If a pregnant woman has blackness before the eyes and false sweating, she should go to the hospital to get a clear picture of the general situation and receive symptomatic treatment.