How frequent is heteropaternal superfecundation?

Acta Genet Med Gemellol (Roma). 1992;41(1):43-7. doi: 10.1017/s000156600000249x.


A newly discovered case of heteropaternal superfecundation (HS) is reported. Three HS cases were found in a parentage test database of 39,000 records. The frequency of HS among dizygotic twins whose parents were involved in paternity suits is 2.4%. Although the study population appears similar to the general population with respect to twinning data, inferences about the frequency of HS in other populations should be drawn with caution.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Adolescent
  • Adult
  • Female
  • Genetic Markers
  • Humans
  • Infant, Newborn
  • Maternal Age
  • Nuclear Family
  • Paternity*
  • Phenotype
  • Pregnancy
  • Pregnancy, Multiple
  • Racial Groups
  • Superfetation*
  • Twins, Dizygotic / statistics & numerical data*
  • Twins, Monozygotic / statistics & numerical data


  • Genetic Markers