The absence of a fetal heart at 12 weeks of pregnancy is usually indicative of fetal arrest and hopelessness. Usually in about 50 days after pregnancy, ultrasound examination can find the appearance of fetal buds, fetal heart, so under normal circumstances, 12 weeks of pregnancy will not appear no fetal heart. If there is still no fetal heartbeat at 12 weeks of pregnancy, it is mostly suggestive of fetal anomalies that lead to fetal decontamination. At this time, you should consult a doctor in time, and with the help of the doctor, take abortion and other ways to help expel the decontaminated fetus from the mother’s body, so as to avoid the mother’s body from causing bad effects. After the abortion, you can do chromosome examination on the fetus to see whether the fetal decontamination is caused by chromosomal abnormality related factors. After the abortion, you should pay attention to rest, prohibit tub baths and sexual intercourse for one month, and have regular postoperative checkups. In the next preparation for pregnancy, it is recommended that both parties do a good pre-pregnancy examination, pay attention to rest in daily life, prohibit smoking and alcohol, oral folic acid.