If we are referring to dizygotic twins (fraternal, non-identical), then family genetic inheritance may indeed be a factor to predispose a woman to have twins.
Less is known in the case of non-identical, monozygotic twins. It was thought it was due to a random, chance happening, but it could also have a genetic basis in that within some families there are various cases of identical twins.
Read the full article on: Is having twins hereditary? What are the influencing factors? ( 45).
Silvia Azaña Gutiérrez
Graduate in Health Biology from the University of Alcalá and specialized in Clinical Genetics from the same university. Master in Assisted Reproduction by the University of Valencia in collaboration with IVI clinics.