Autoimmune hemolytic anemia caused by cold agglutinins in a young pregnant woman.

Autoimmune hemolytic anemia is a rare disorder. A 34-year old woman presented with thrombophlebitis after her first delivery, during puerperium. A high titer of cold agglutinins was found. Lymphomas, systemic lupus erythematosus, and tumors were excluded. She conceived again. Due to the anemia she had frequent blood transfusions and she delivered at 38 weeks of gestation.