Case Report: grandmother, mother and another -- an intergenerational surrogacy using anonymous donated embryos.

Surrogacy and embryo donation remain beneficial but controversial infertility therapies. This is the first report of a pregnancy and subsequent birth of healthy twins following a surrogacy involving a female patient's biological mother as surrogate, but using anonymously donated embryos. Due to the novelty of combining intergenerational surrogacy with embryo donation, the legal side of adoption has taken over 3 years to complete.