Pre-eclampsia miscarriage is not visible by ultrasound and the diagnosis is given based on the patient’s clinical symptoms. Most patients will experience a small amount of vaginal bleeding, often dark red or bloody leucorrhea, after a few days of bleeding a slight swelling of the small stomach or pain in the lumbosacral area, which can be diagnosed as a pre-eclampsia. Fetal preservation medication needs to be given under the guidance of a doctor, and the patient should absolutely rest in bed and avoid fatigue and strain. Most women’s symptoms will disappear after treatment and the pregnancy can continue. If the patient’s symptoms worsen, with more bleeding and large blood clots, it may develop into a refractory miscarriage.