Factors influencing the formation of twins – part IV – lactation
Journal Title: Ginekologia i Położnictwo medical project - Year 2015, Vol 2, Issue 36
Abstract
There is a common belief that during the breastfeeding a woman can not get pregnant because lactation stops the occurrence of ovulation. Also, some studies have shown that during lactation there are more than 10. fold greater chance of conceiving not only dizygotic but also monozygotic twins. In case of dizygotic pregnancy it is probably caused by a sudden increase in the concentration of FSH in the serum upon the resumption of the menstrual cycle. However, the mechanism responsible for the increase in the proportion of monozygotic twin pregnancies that arise as a result of secondary division of the originally single zygote into two separate and genetically identical embryonic structures has not been elucidated yet.
Authors and Affiliations
Witold Malinowski, Dorota Ćwiek
Keywords
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