Polycystic pregnancies are more likely to miscarry because polycystic ovary syndrome is caused by abnormal hormone levels. Polycystic ovary syndrome is prone to miscarriage due to high androgen levels in the body, high luteinizing hormone, and insufficient luteinizing hormone production. After pregnancy, patients with polycystic ovary syndrome must do HCG (human chorionic gonadotropin), progesterone, estradiol test as soon as possible, if the level of estradiol is insufficient, progesterone is low, you need to use progesterone medication to keep the fetus in time, and regular ultrasound to check the development of the embryo and so on. Once a patient with polycystic ovary syndrome becomes pregnant, she must be closely monitored by her doctor and undergo all stages of obstetrics, so that problems can be detected at any time, and personalized diagnosis and treatment plans can be formulated for timely treatment.