[A contribution to the problem of heterologous insemination (author's transl)]

The problem of a heterologous insemination must occasionally be dealt with. The conditions for such treatment are not good in the Federal Republic of Germany. This, however, should not negatively influence the quality of the therapy. At least the serologic characteristics of the donor should be known. The impetus for this article was provided by the unsuccessful course of a pregnancy after heterologous insemination in a patient with an established, severe Rhesus incompatibility.