multiple births


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Related to multiple births: Octomom, Septuplets

multiple births

The production of more than one individual in a single parturition. Twins occur in about one in every 84 births in Britain, and about one in 300 pregnancies results in identical twins. Multiple births may occur as a result of the near-simultaneous release and fertilization of more than one ovum, or from the fertilization of a single ovum which then separates into two or more parts from each of which a new individual develops, all having identical genetic constitution. Non-identical (dizygotic or fraternal) twins may be of the same or of different sex and are no more alike than any other two siblings. Each has his or her own PLACENTA and set of membranes. Identical (monozygotic) twins share a placenta and often compete for nourishment so that they are of unequal weight when born. Multiple pregnancies are shorter than single pregnancies. Triplets and higher number births are biologically rare. Triplets have a natural frequency of about one in 7000 births. They are more common as a result of the use of anti-infertility drugs that induce multiple ovulation.
References in periodicals archive ?
The report, from the Office for National Statistics (ONS), said: "Although most multiple births occur naturally, many occur as a result of fertility treatment.
Paul and Tracey |face up the reality of multiple births
Neri Colmenares and Carlos Isagani Zarate who both noted that children of multiple births, aside from needing extra care and attention, also bring added financial expenses for the parents.
In fact, in the highest-risk group of women aged 42 years and older, there were no higher-order multiple births at all that year, according to David Ball, Ph.
The project's authors found interest from delegates at the conference in the research was immense, with the qualitative findings relevant for frontline practitioners who have contact with parents with multiple births.
where feasible, is needed to reduce multiple births and related adverse consequences of ART.
The figures are particularly concerning because the number of women having multiple births due to IVF has dramatically risen over the past decade, the Daily Mail reported.
A woman of limited means might not be able to afford multiple IVF pregnancies, and some women might prefer having a single pregnancy with multiple births to having multiple pregnancies with single births.
Multiple births therefore are more likely to be associated with assisted reproductive techniques.
Overall, the number of triplet births appeared to have peaked in 1998, with the number of triplets and higher number multiple births up a total of 400 percent since 1980 (Martin et al.

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