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Doctor insights on: What Are The Main Differences Between Singleton Pregnancies And Twin Pregnancies

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What are the main differences between singleton pregnancies and twin pregnancies?

What are the main differences between singleton pregnancies and twin pregnancies?

Twice as many babies: Because the number of babies is doubled, the uterus grows larger faster; this will typically lead to a premature delivery at <37 weeks. There are also increased risks of pregnancy complications such as pre-eclampsia. Delivery route can also be affected if the first twin is not head down. If the first baby is head down, then a vaginal delivery of both twins can usually be performed. ...Read more

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Dr. Lawrence Kessler
4 doctors shared insights

Pregnancy (Definition)

When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to ...Read more


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What are the differences between low-risk and high-risk pregnancies?

What are the differences between low-risk and high-risk pregnancies?

Many things: Mother nature can be tough. Every pregnancy poses risks to mom or baby. The goal of modern obstetrics and maternal-fetal medicine is to decrease the chances of big problems occurring. Uncomplicated pregnancies are more common than complicated ones in which mom or baby is at high risk for preterm birth, bleeding, hypertension, diabetes, multiples, birth defects or other threats to their life/health. ...Read more

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What are the risks of genetic amniocentesis in twins?

What are the risks of genetic amniocentesis in twins?

Low, but....: Amniocentesis is invasive, and the risk of ruptured membranes, and possible miscarriage, is at the rate of 1/110-1/200. There is the risk of misinformation by not sampling one, or both, of the sacs, as well. ...Read more

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What are the hCG levels for twins vs singletons?

What are the hCG levels for twins vs singletons?

Approx double: Hcg is a reflection of the amount of tissue secreting it i.e. Trophoblastic tissue. Therefore it is approximately doubled. ...Read more

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My wife is pregnant with twins. They are in the same placenta but have seperate amnions. Are these called mono-mono twins? Are the risks higher?

My wife is pregnant with twins.  They are in the same placenta but have seperate amnions.  Are these called mono-mono twins?  Are the risks higher?

Mono di: You babies are mono chorionic, share placenta, but di amniotic different sacs. Risks are somewhat higher than di, di twins but not as high as babies in the same sac who can get tangled in each others cord. ...Read more

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What's the difference between fraternal and identical twins genes?

What's the difference between fraternal and identical twins genes?

Different, same.: Fraternal (dizygotic) twins share 50% of their genes, just like any other siblings. Identical (monozygotic) twins typically have the same 100% dna profile, as if clones of one another. ...Read more

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Are there differences between IVF and test tube babies?

Are there differences between IVF and test tube babies?

No: 'test tube baby' is a much older non-medical term that used to be used when talking about ivf pregnancies. They are the same thing. ...Read more

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What are the differences between trisomy 21 and xxx?

What are the differences between trisomy 21 and xxx?

Completely different: Down syndrome (trisomy 21) is characterized by varying degrees of neurodevelopmental delay (mild to severe) propensity for dementia at early age and heart/blood disorders, but may have a near normal life span. Extra chromosome x is usually very mild condition; affected females tend to be tall and have relatively small heads and minimal decrease in their verbal and performance iq scores. ...Read more

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What are the differences between infertility and premature ovarian failure?

What are the differences between infertility and premature ovarian failure?

They're different: Infertility is the inability to achieve a pregnancy within a year or so of having unprotected intercourse. There are many different causes of infertility. Premature ovarian failure (pof) is the temporary or permanent cessation of ovarian function before age 40. Pof can be one of the many causes of infertility. ...Read more

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What are the different fetal outcomes in cases of pre-eclampsia?

What are the different fetal outcomes in cases of pre-eclampsia?

Of course.: Range: death to completely healthy infants. The main determinant is acuity of care, prompt seeking of medical care, gestational age at diagnosis and luck. ...Read more

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What are the benefits of having twins early via c-section?

What are the benefits of having twins early via c-section?

Depends: Early delivery for any pregnancy (singleton or twin) should be avoided. If early delivery is not avoidable, then your doctor may decide that a c-section is safer for the babies than a vaginal delivery. This usually occurs for very small babies and for babies that are breech or transverse and not head down for delivery. ...Read more

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Is there any relationship between maternal weight gain during pregnancy and gestation period/duration for singletons? For twins?

Is there any relationship between maternal weight gain during pregnancy and gestation period/duration for singletons? For twins?

Not consistantly: Too little weight gain or excessive weight gain could be associated with indications for early delivery (iugr, pre-eclampsia, gestational diabetes, ect). There is no specific concrete direct relationship between pregnancy duration and maternal weight gain. ...Read more

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What are the risks of genetic amniocentiisis?

What are the risks of genetic amniocentiisis?

Low but severe.: 1/100-1/1, 000 women suffer any of the following after amniocentesis performed between 16-20 weeks: miscarriage, preterm birth, rupture of membranes, intrauterine infection, bleeding, injury to the fetus with the needle. Nowadays, non-invasive genetic testing is available (maternit21 by sequenom and others). ...Read more

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The difference in pregnancy outcome between aps and lupus?

The difference in pregnancy outcome between aps and lupus?

APS/Lupus: Both conditions can significantly complicate pregnancy but lupus can be more difficult to manage and can complicate the pregnancy in more ways than antiphoapholipid antibody syndrome. Thus, aps has a better pregnancy outcome than lupus. ...Read more

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What are major developments in second trimester of pregnancy?

What are major developments in second trimester of pregnancy?

Lots: Too much to answer in 400 spaces! go to: http://www.Pregnancy.Com this web site has week by week information on what's happening with baby development, how mom should be feeling, etc. Hope it helps. ...Read more

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What link is there between immobility and the complications of pregnancy?

What link is there between immobility and the complications of pregnancy?

What's causing it?: Immobility of what: one part of your body or your whole being? Must make diagnosis then treat it. Suspect severe depression or stroke. Depression during or after delivery (post-partum) is part genetic predisposition, hormonal and early life experience. Professional help and medication is obligatory. Forget breast feeding and use medication as directed by the experienced professional treating you. ...Read more

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How common are IVF pregnancies that result in twins?

How common are IVF pregnancies that result in twins?

Very: Ivf pregnancies, whereupon ovulation induction agents are used, markedly increases the occurance of multiple gestations. Embryos are screened before implantation to reduce this concern, but it still occurs with greater frequency than spontaneous pregnancies. ...Read more

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What is the incidence of twin births?

What is the incidence of twin births?

See below: Monozygotic twin births occur all over the world at a constant rate of 3.5 per 1000 births. Dizygotic twin births range from 6.7/1000 births in japan, to a high of 40/1000 births in nigeria. The two most important factors that influence dizygotic twinning are maternal age at conception, and the use of assisted reproductive technology. Due to the increasing tendency of women to delay pregnancy. ...Read more

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After healthy heart rates are identified in identical twins, what is the probability of a vanishing twin?

After healthy heart rates are identified in identical twins, what is the probability of a vanishing twin?

Fairly common: A conservative estimate of frequency is that vanishing twin syndrome occurs in 21-30% of multifetal pregnancies. More commonly identified now that first trimester ultrasound is widely used. There are no known preventive measures since the loss usually occurs because of cord implantation abnormalities. Thanks for trusting HealthTap! ...Read more