High fibrinogen in pregnant women may be a normal physiological phenomenon, but also can be seen in pathological causes, such as gestational hypertension syndrome, gestational diabetes mellitus and so on. 1. Normal physiological phenomenon: during pregnancy, the fibrinogen of pregnant women will reactively rise, so that the blood shows a high coagulation state, which can prevent postpartum hemorrhage, etc. It is a normal physiological process and does not require special treatment. 2. Pathological reasons: such as pregnancy combined with hypertensive syndrome, gestational diabetes, acute infection, acute myocardial infarction, acute glomerulonephritis, rheumatic diseases and pre-thrombotic state, can make pregnant women with high fibrinogen. There are many other causes of high fibrinogen in pregnant women, which should be taken seriously, timely consultation, identification of the cause of the disease, and further treatment or treatment in accordance with medical advice.