Doctor insights on:
Types Of Identical Twins Pregnancy
If you have identical twins, will they both develop the same genetic/inherited disease at the same point?
Depends: If it's something that fully expresses itself with no modification (such as huntington's), yes. If it's going to express itself but is lifestyle-modifiable (type ii diabetes), timing will differ. The diseases for which there's a genetic component (diabetes, lupus, multiple sclerosis, many others) have only one twin affected more often than not -- you can find details. ...Read more
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
Yes: Fraternal twins are 3 times as frequent as identical. Fraternal twins happen when there is double ovulation and 2 eggs get fertilized. They are the type of twins that run in families. Identical twins come from 1 fertilized egg which separate in early gestation. Depending on when they separate, the babies can be in 2 distinct sac (di/di), 2 sacs within a shared sac (mono/di) or 1 sac (mono/mono). ...Read more
Some do some don't: If two twins share the same sac, they're identical. (almost always works.) the pathologist who examines the placenta can tell. Identical twins can have two sacs, or one sac; if there are two sacs, there can be one or two chorions. Fraternal twins won't share chorions or sacs. ...Read more
Can an orgasm kill an unborn identical twin? Should orgasming be stopped due to identical twins or MoMo twins?
No, if all is normal: A fetus can die after the pregnant woman has an orgasm, but can also die before she has an orgasm. A fetus can die after the woman eats a peanut butter and jelly sandwich. All these things do happen, BUT are they related? The answer is NO, unless the woman has a problem that causes two things to be related (such as having a peanut allergy, and a life-threatening reaction after a PB&J sandwich). ...Read more
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
My Husband has multiple sets of fraternal twins on his side and I have identical twins on my side, is the twin gene carried on the male side or woman?
Female Side: Genetic increase for twins is due to female tending to ovulate more than one egg at a time, so trait is for fraternal twins (not identical) and carried by mother. ...Read more
Yes: Actually this is slightly more common after day five transfer ~1%. Since the embryo is in nearly hatching or hatching, the transfer "pressure" can cause the embryo to split into identical twins. This is one of the disadvantages of day 5 transfer. Good luck. ...Read more
Both: A fertilized egg cell will split into two separate embryos, and grow into identical twins. A common misconception about identical twins is that the trait for having them is passed on to future generations through the mother's genes. But the truth is science doesn't know the reason why identical twins occur. At this time, we can just say that they're examples of a nine-month double miracle. ...Read more
Why would my pediatrician be concerned about my 15 month (13 adjusted) identical twins girl's height?
We always watch it: Pediatricians always watch the height, weight, and head size for a baby or toddler. That's how we know if the growth is fine. Sometimes, two or three measurements are needed to get an accurate number on a squirming baby. We get concerned if a number is "off the graph" on the growth chart, or if numbers are trending too high or low for a particular child compared with her peers, sibs, or parents. ...Read more
Identical twins have the same DNA sequence, then how would you explain the different patches of sweat glands, can you explain?
The twins share the same DNA sequence but going from a fertilized egg to splitting into multiple cells to form a human can be influenced by several factors that can lead to individual differences. I found this article very helpful in answering your question.
http://multiples. About. Com/od/funfacts/a/differenttwins. Htm ...Read more
Not always: They would be no more likely to look alike than any other siblings. ...Read more
If you are asking: If two identical twins, say both are women giving birth at the same time, have a higher chance of having the same gender for their babies, then the answer is no. The probability is 50% for 1 twin mother and 50% for the other twin mother delivering both a boy, 0.5 x 0.5 = 0.25 or 25%, but adding to the same probability for a girl. So 25% both girls + 25% both boys = 50%. ...Read more
Do identical twins have the same sexual orientation? If not, does that mean sexual orientation is not encoded in DNA?
Twin DNA: Although identical twins have the same DNA, the DNA molecule has the potential for mutation, and changing the gene's expression creating differences depending upon the gene (s) involved. Gender identity is thought to be determined by genetics as well as other factors, although an actual variation or determining factors have not been identified. ...Read more
I Hope Not!: Twins at 7 weeks should be fairly clearly visible on a transvaginal sono. As far as whether or not they might be identical, that is a more difficult question to answer by sono and requires careful analysis of the membranes surrounding fetuses, unless there is a single sac which would only be seen in an identical twins (rare). They can also be in 2 sacs however. ...Read more
How often can an donor egg embryo split and result in identical twins? Is it in most cases or is it rare? We will be using icsi
1-2%: The reported risk is about 1-2%. No longer believed in general to be related to icsi. When more than 1 embryo is placed inside the risk seems to be higher for reasons which are not known. Also the risk as far as I am aware is not higher in donor versus non donor egg. ...Read more
I am a 42 year old woman mother of identical twins naturally conceived my last period was on july the 24th I had unprotected sex on august 4th did not get my period aroun the days I was supposed to slightly irregular could be off by 2 5 days mostly 2days
Does pregnancy increase or decrease a teen's final height? If one of 2 identical twin sisters got pregnant at 14 yrs, which twin would end up taller?
Height: The non pregnant twin would be taller. ...Read more
Yes: While the diagnosis may be suspected, it can only be confirmed by close examination of the placentas or genetic testing before/after delivery. Usually with early ultrasounds, we can be pretty sure about identical or monozygotic twins. It means that during very early embryo development, one embryo split into two. ...Read more
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
Earlier, smaller: The risk of preterm birth is higher for several reasons; triplet birth is likely to be earlier than that of twins. In addition, there is greater risk of growth problems, deformations from crowding, malpresentation. For the mother of triplets, the risks from abdominal delivery are higher than those of women with twins delivered vaginally and possibly abdominally, depending on the size and position. ...Read more
I am 34 years old, have had 5 pregnancies, have a BMI of 30 and have a family history of twins on my mothers side. What are my odds of having twins?
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