What is superfertilization?

Superfertilization consists of the fertilization of more than one ovum in the same menstrual cycle of the woman, although not in the same sexual relationship. In addition, it is not necessary that all the eggs are fertilized by sperm from the same man, but they can be sexual acts with different partners.

Therefore, superfecundation can be:

Heteropaternal

fertilization of two or more ovules with sperm from different fathers.

Homopaternal

fertilization of two ovules with the sperm of the same man. In this case, the babies may be fraternal twins.

In any case, superfertilization is not a common process in people. There is a low percentage of superfertilization if there have been separate sexual acts or pregnancy through artificial insemination (AI).

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Author

Cristina Algarra Goosman

B.Sc., M.Sc.

Psychologist

Graduated in Psychology by the University of Valencia (UV) and specialized in Clinical Psychology by the European University Center and specific training in Infertility: Legal, Medical and Psychosocial Aspects by University of Valencia (UV) and ADEIT.
More information about Cristina Algarra Goosman

Member number: CV16874