Question 1

what should i do if my ultrasound didn't detect one of my twins?

Accepted Answer

That can happen.: The more important question is "are the twins okay?"  repeat ultrasounds and see your obstetrician frequently to insure they are healthy.

Question 2

saw twins on my ultrasound but one is bigger than the other. is that a problem?

Accepted Answer

Depends: In general  it is common for one twin to  be  slightly  larger than  the other.  In some  rare cases it  can be  a  problem  ( usually with identical not fraternal twin) usually  serial sonograms  will be done to evaluate  the growth of  both  twins.  Ask your  md   what  the size difference means in your  case.

Question 3

1st ultrasound, ~6 weeks 4days. two amniotic sacs but difficulty viewing 2nd. one heartbeat for sure. what are the chances of viable twins still & how good are the chances of at least one viable baby?

Accepted Answer

Two Sacs: Human twinning is very common.  In fact, ultrasound has shown that it is more common that previously thought.  Many times one of the fetus will fail to develop.  This should not affect the long term growth of the surviving twin.

Question 4

had an ultrasound at 11w1d. one twin was moving but i didnt see the other move much. both had strong heart beats. the scan was only about 5 minutes but now that im home thinking should i be concerned i only saw one baby move? is this normal?

Accepted Answer

US not focused long: 5 minutes is not long time to be focused on twin pregnancy. Don't worry not moving baby was likely taking a nap or a rest. You will notice that one baby, in any pair of twins, is often much active than the other. Good Luck with the pregnancy and the twins.

Question 5

ultrasound shows one ivf twin 4 days behind 9 week scan. both had strong heart beats. when to worry?

Accepted Answer

Not to worry.: I can tell this is a highly desired and anticipated pregnancy and offer you my congratulation on the success thus far. As you know, things can still go wrong as this is a very high-risk pregnancy, so see a maternal-fetal medicine specialist as soon as possible and get information on twin-to-twin-transfusion syndrome and genetic counseling. Non-invasive prenatal genetic testing is now available.

Question 6

just had an ultrasound at 6wks/2dys twin sacs very close together. i've a very tilted uterus. a yolk sac was seen in one but no fetal pole/hb. viable?

Accepted Answer

Twin sacs: You will need to have a few more scans over the coming weeks. It is possible that it was too early to see the fetus/heartbeat of both or either twin. Further scans will help see whether it is a miscarriage or not. It is not uncommon to see twin sacs early, but only one living baby later on. One twin can not develop ( it dies and is resorbed ) while the second twin does well with no problem at all.

Question 7

is a high def ultrasound common with twins?

Accepted Answer

????: Don't quite know what you mean. All our fetal sonos are done with the highest possible definition. There are a few more things we evaluate with twins such as the number of placentas and the sac anatomy. Or as we are fond of saying, "twice the work for the same fee!".

Question 8

can a twin be missed at 12 week ultrasound?

Accepted Answer

Yes: mistakes happen.  However, it is very unlikely.  If you are concerned, speak with your doctor.  A second ultrasound should confirm the initial findings.

Question 9

how do i know if im having twins without getting an ultrasound?

Accepted Answer

No reliable way: Ultrasound is the only way to "see" what is in the uterus.

Question 10

is it possible that the ultrasound technician could not see a triplet hiding behind twins at 11 weeks 3 days?

Accepted Answer

Yes: Depending on how thorough the study &amp; the training of the tech, missing a fetus is possible. Regular US is a 2 dimensional study and you only see what your probe lights up.

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Doctor answers about:

What should i do if my ultrasound didnt detect one of my twins

A member asked:

What should i do if my ultrasound didn't detect one of my twins?

A member asked:

Saw twins on my ultrasound but one is bigger than the other. is that a problem?

A member asked:

1st ultrasound, ~6 weeks 4days. two amniotic sacs but difficulty viewing 2nd. one heartbeat for sure. what are the chances of viable twins still & how good are the chances of at least one viable baby?

A member asked:

Had an ultrasound at 11w1d. one twin was moving but i didnt see the other move much. both had strong heart beats. the scan was only about 5 minutes but now that im home thinking should i be concerned i only saw one baby move? is this normal?

A member asked:

Ultrasound shows one ivf twin 4 days behind 9 week scan. both had strong heart beats. when to worry?

A member asked:

Just had an ultrasound at 6wks/2dys twin sacs very close together. i've a very tilted uterus. a yolk sac was seen in one but no fetal pole/hb. viable?

A member asked:

Is a high def ultrasound common with twins?

A member asked:

Can a twin be missed at 12 week ultrasound?

A member asked:

How do i know if im having twins without getting an ultrasound?

A member asked:

Is it possible that the ultrasound technician could not see a triplet hiding behind twins at 11 weeks 3 days?

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