[Haptoglobin typing in abortion in the 1st trimester]

The type of haptoglobin was examined in 239 women suffering from hemorrhage in early pregnancy. The distribution of Hp-types in the different forms of abortion was compared with a reference group. A provable significant deviation in distribution of Hp-types could be traced in case of incomplete abortion. The immunological lower reaction capacity in haptoglobin type 1-1 has been discussed.