Patient's question:
Hello, how many days after pregnancy can a fetal heartbeat be seen with an ultrasound?Doctor's answer:
Hello, under normal circumstances, a fetal heartbeat can be seen on vaginal ultrasound or abdominal ultrasound at 5-6 weeks of pregnancy. After 7-8 weeks of pregnancy, a clear fetal heartbeat can be observed on ultrasound, and 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 fetal heartbeat, it often suggests embryonic death and inevitable miscarriage. However, if the ultrasound examination is performed too early, the absence of a germinal disc and fetal heartbeat cannot be definitively considered abnormal.