A lokacin haihuwar al'ada, raunin haihuwa ko rikitarwa a lokacin daukar ciki, jinin daga tayin zai iya shiga cikin tsarin mahaifiyar. A cikin yanayin mahaifiyar Rh-da ba ta dace da mahaifiyar da jariri ba, haɗuwa da jinin jini na iya sa mahaifiyar Rh-ta ji da ƙwayoyin Rh + na jariri, sanya ragowar ƙwayoyin ciki, da kowane ciki na gaba, a cikin haɗarin kamuwa da cutar hemolytic globulin na jaririn da aka haifa.
Kwayoyin ƙwaƙwalwar ajiya B