The chorionic villus value refers to the level of human chorionic gonadotropin, or HCG. Slow growth of this value after pregnancy can lead to fetal arrest, but it can still develop normally after treatment. When chorionic villus growth is slow, it is possible that the fetus will return to normal development after aggressive fertility preservation treatment in the hospital. If not treated actively, it will result in the slow disappearance of pregnancy reactions, such as nausea and vomiting, etc. After this, the woman’s vagina will also bleed. Patients are advised to closely monitor their HCG levels during pregnancy to promote fetal health. In case of abnormal chorionic villus value test results, patients are advised to seek prompt medical attention and to clarify the cause of the disease with the help of the doctor and carry out targeted treatment or therapy to prevent fetal arrest or miscarriage.