The Different Types Of Twin Pregnancies
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The Different Types Of Twin Pregnancies

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The Different Types Of Twin Pregnancies The Different Types Of Twin Pregnancies Presentation Transcript

  • Twins can be the same (identical-monozygotic) or different (f Fraternal twins, triplets, or more develop when two or moreby separate sperm. Fraternal fetuses have separate placentas (the bag containing the fluid around a baby
  • Identical twins come from a single egg that has been fertilizFor unknown reasons, the fertilized egg splits into two or mo the first stage of development. Some identical twins share tHowever, they usually grow within separate amniotic sacs in cases, identical twins share one amniotic sac (mono
  • Fraternal multiples:
  • 1. Can be of different sexes and may have different b
  • 2. They may look very different from one another, with diffe and eyes. They may also look alike, as siblings oft
  • 3. Tend to run in families.
  • 4. They are more common in older mothers, African races an family history of twins. They are least common in Asian famalready carried fraternal twins, you have double the usual ris A history on your partners side of the family does not incr multiple pregnancy.
  • Identical twins
  • 1. Are always the same sex and blood type
  • 2. They do not necessarily look exactly alike. One may be rig the other is left-handed.
  • 3. They develop at random. They are not related to maternal history of twins.
  • 4. Multiples that are conceived with infertility treatment are rather than identical.
  • What are the causes of multiple pregnancy
  • 1. With increasing maternal age the chance of twins increaperspective, your chance of giving birth to twins if you are le age is less than half of what it would be after the a
  • 2. You are more likely to conceive twins in the first few men stopping birth control pills.
  • 3. Infertility treatment. Fertility drugs stimulate your ovaries eggs, which can be fertilized at once. This may result in a mu You are, therefore, more likely to have a multiple pregnancy drugs or assisted reproductive technology (ART - In Vitro F
  • 4. ART is the transfer of embryos directly into the uterus. I when success rates were extremely low, several embryos wthe hope of achieving a pregnancy. Nowadays, 25% to 30% o ART are twins; 5% are triplets and less than 1% are quadrup techniques have improved, success rates from IVF/embry increased and reasonable success rates are being achieved w transfer and this reduces the incidence of multiple pr
  • What is the prevalence of multiple pregnanc
  • The natural incidence of twins is 1 in 80 pregnancies and forpregnancies. The incidence is rising as a result of IVF and a te to deliver later in their reproductive years. Naturally occurbirths occur in 1 per 600,000 births. The UK would, therefore naturally occurring quadruplets each year. There are est approximately 125 million human twins and triplets in the w million identical twins.
  • One in two pregnancies with same sex babies are monozygou The rate of identical twins remains at about 1 in 333 pregn globe.Author: David VinikerThe Different Types Of Twin
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