Patient's question:
NoDoctor's answer:
Under normal circumstances, fetal heartbeat can be observed on vaginal ultrasound or abdominal ultrasound at 5-6 weeks of pregnancy. After 7-8 weeks of pregnancy, the ultrasound can clearly show the fetal heartbeat. At this time, the heart rate and rhythm can be measured using M-mode ultrasound, with the heart size being approximately 2mm. If the ultrasound image clearly shows an embryo without a heartbeat, it often indicates embryonic death and inevitable miscarriage. However, if the ultrasound examination is performed too early, the absence of a germinal disc and heartbeat cannot be determined as abnormal.