![]() The ASRM report that nonidentical twins are slightly more common in taller or heavier women than they are in small women. If sperm fertilizes two separate eggs, a twin pregnancy can occur. The reason for this is that women of this age are more likely than younger women to release more than one egg during their reproductive cycle. AgeĪccording to the Office on Women’s Health, women who are aged 30 years or older are more likely to conceive twins. Multiple pregnancies carry additional risks, so the healthcare professional will usually limit the number of embryos that they transfer to the woman’s womb to reduce the chance of a pregnancy with twins, triplets, or more. Twins can occur if both embryos implant and develop successfully. To increase the likelihood of success, the healthcare professional may place more than one embryo into the womb. They then transfer the fertilized embryo into the woman’s womb. Healthcare professionals carry out IVF by extracting a woman’s eggs and fertilizing them with a donor’s sperm in a laboratory to produce an embryo. In vitro fertilization (IVF) can also increase the chance of conceiving twins. If sperm fertilizes both of these eggs, this can result in twins. Some fertility drugs work by stimulating a woman’s ovaries, which can sometimes cause them to release more than one egg. ![]() The various types of fertility treatment available increase the likelihood of twins in different ways. The ASRM note that the main factor that increases the chance of having twins is the use of fertility treatments. However, there is little evidence to support this theory. Some people believe that twins can skip a generation, meaning that a person will potentially have twins if one of their grandparents did. For men who are nonidentical twins, the chance of conceiving twins is only 1 in every 125 births. However, this only applies if conception takes place without the use of fertility treatments.Īccording to the ASRM, women who are themselves nonidentical twins produce twins in around 1 in every 60 births. A family history of twins on the mother’s side increases this likelihood more than a family history on the father’s side. These include: Family historyĪ woman has a slightly higher chance of having twins if she has a family history of twins. ![]() Several factors can increase the likelihood of a woman conceiving twins. These embryos are dizygotic, which means that they do not have identical genes and may not be the same sex.įraternal twins are common after fertility treatment because healthcare professionals often place two fertilized embryos into a woman’s womb to increase the chances of a successful pregnancy. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |