Low Femur Lenght/BPD ratio

Hi All,

I am 22 weeks pregnant mom. I have done my U/S and as results, I got
everything normal expect that the LF/BPD was juged low (67%). The
average is 71-83 %.
My OB/Gyn asked me to repeat the U/S in 2 weeks.
What does that mean? Is my baby in high risk? Has anyone experienced
that before?
I am very worried and I really need help.....

Thanks

Short femur is one of the so-called "soft sign" markers. This is a
group of findings that are often normal, but are slightly more common
in babies with chromosome abnormalities like Down syndrome. If you only
have one "soft sign," the increased risk is vanishingly small - very
unlikely to actually be an abnormal baby. Only when multiple "soft
signs" are present does the risk increase significantly.

The FL/BPD ratio is just one way of deciding whether the femur is short
or not.

Since this is the only "soft sign" that was seen in your scan, it
probably means nothing.

alath wrote:
Short femur is one of the so-called "soft sign" markers. This is a
group of findings that are often normal, but are slightly more common
in babies with chromosome abnormalities like Down syndrome. If you only
have one "soft sign," the increased risk is vanishingly small - very
unlikely to actually be an abnormal baby. Only when multiple "soft
signs" are present does the risk increase significantly.

The FL/BPD ratio is just one way of deciding whether the femur is short
or not.

Since this is the only "soft sign" that was seen in your scan, it
probably means nothing.

Thank you Alath for your clarification.