It is possible to keep the fetus after pregnancy with polycystic ovary syndrome. Polycystic ovary syndrome manifests as anovulation or sparse ovulation, but pregnancy is possible if intercourse occurs at the time of ovulation. This is the same as the normal pregnancy process and is usually not a problem as long as there is no exposure to substances that have an effect on the embryo. However, patients with polycystic ovary syndrome are prone to embryonic arrest or miscarriage due to hormonal imbalance in the body, mainly due to insufficient production of progesterone. Therefore, after a patient with polycystic ovary syndrome finds out that she is pregnant, she should first clarify whether the pregnancy is intrauterine and whether the embryo is developing well through ultrasound examination, promptly test the HCG value and progesterone value, and once the problem of hormone deficiency is found, she should promptly supplement hormones for fetal preservation treatment. After pregnancy, patients with polycystic ovary syndrome should follow the precautions taken after normal pregnancy, establish a file, conduct prenatal checkups on time under the guidance of the doctor, and especially strengthen the management of high-risk mothers, with a higher frequency of maternity checkups than normal pregnant women. In addition, it is important to pay attention to folic acid supplementation in all three months of pregnancy, refrain from strenuous exercise, pay attention to rest, reasonable diet, keep the mood relaxed and calm, which is conducive to normal fetal growth and development, stay away from toxic and harmful substances, and avoid taking drugs blindly to avoid adverse consequences.