This article describes the case histories of three women diagnosed with various blood clotting disorders. The blood clotting disorders had impaired the ability of each of them to carry a baby to full term. The article looks at the similarities and differences between the women in terms of TCM patterns, and Five Element Constitutional Factor (CF). It describes how the medication they were prescribed affected the choice of treatment principles and also their response to acupuncture treatment. It ends with the authorís reflections on the experience of treating them.