What should I do if I cannot hear the fetal heartbeat during pregnancy?

May 29, 2022 Source: Cainiu Health
Dr. Chen Zhe
Introduction
If no fetal heartbeat is detected during pregnancy, it is advisable to undergo ultrasound examinations at several reputable hospitals. If a pregnant woman has already been confirmed to have an intrauterine pregnancy during early gestation, but no fetal heartbeat or fetal pole is observed—and even the yolk sac is absent on ultrasound—this indicates a “blighted ovum.” In another scenario, a yolk sac is present, yet neither a fetal heartbeat nor a fetal pole is detected.

In daily life, every expectant parent hopes to give birth to a healthy baby. However, for various reasons, the absence of a fetal heartbeat may indicate potential risks to the baby. So, what should you do if no fetal heartbeat is detected during pregnancy?

What to Do If No Fetal Heartbeat Is Detected During Pregnancy

If no fetal heartbeat is detected, it is advisable to undergo ultrasound examinations at several reputable hospitals. If an intrauterine pregnancy has already been confirmed early in gestation, but neither a fetal heartbeat nor a fetal pole is observed—and even the yolk sac is absent on ultrasound—this indicates a “blighted ovum.” In another scenario, the yolk sac is present, yet there is no fetal heartbeat or fetal pole; in such cases, expectant parents and the mother should consider interventions to support the pregnancy.

Pay close attention to the precise timing of embryonic development and implantation. If the expectant mother has a longer-than-average menstrual cycle, embryo implantation may occur later. For women with regular cycles, the embryo is typically visible by approximately six weeks’ gestation, and the fetal heartbeat can usually be detected by eight weeks. More recently, it has been established that a fetal heartbeat should definitively be detectable by 10–11 weeks’ gestation; failure to detect one beyond this point may warrant consideration of pregnancy loss.

If embryonic demise is confirmed but spontaneous miscarriage does not occur—often due to persistently high progesterone levels—a surgical termination (dilation and curettage or vacuum aspiration) is required. Prolonged retention of nonviable tissue within the uterus poses significant health risks to the mother. We hope this information proves helpful!