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A 20-year-old female asked about a 24-year-old member:

Baby ultrasound shows no blood vessels are developed at 7th week, is my thrombophilia the cause?

1 doctor answer3 doctors weighed in
Dr. John Fung
General Surgery 40 years experience
Repeat US: AT 7 weeks of gestation, the fetus is approximately a quarter of an inch in length, about the size of a pea. On US, several structures can be seen and at this age the heartbeat can be detected. It is too early to see formed blood vessels reliably. Repeat the US since it is operator dependent, when the fetus is a few weeks older. Thrombophilia can be a cause of fetal loss, but usually later
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Last updated Nov 3, 2014


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