Hyperovulation refers to the production and release of multiple eggs in an ovulation cycle, which increases the chances of conceiving fraternal twins. It occurs naturally, although it can also be stimulated via hormone treatments. It is one of the factors that affect multiple birth.
According to Katherine Neer of HowStuffWorks, one of the possible reasons for hyper ovulation is due to a higher level of follicle-stimulating hormone. This hormone increases among older and heavy women. Research data suggest that the chances of hyperovulation are higher in women over 35 years old. Fertility rates decrease as women age. The pituitary gland boosts the secretion of follicle-stimulating hormone, which triggers the ovary to release more eggs, in order to restore the cycle rhythm.
Families with a gene for hyperovulation among women have higher occurrences of fraternal twins or triplets, says About.com. Fraternal twins run in families only on the mother’s side, given that she inherited the gene for hyperovulation. Considering that only women ovulate, the connection with conceiving twins or triplets is only valid on the mother’s side. According to Pamela Prindle Fierro, a board-certified physician, even men who carry the gene and have a family history of twins are not likely to have twin children themselves.