A 36-year-old woman presented with secondary infertility and secondary amenorrhea and previously diagnosed polycystic ovary syndrome. h ere were no complaints of dysfunctional blood loss, hirsutism, acne, or other endocrinological symptoms. At er failed ovulation induction with clomiphene citrate and gonadotropins, she had conceived at er IVF treatment and delivered a healthy son by primary cesarean section because of a placenta praevia totalis. h e cesarean section was complicated by excessive blood loss of 2000 mL. At er the cesarean section she developed sepsis, the cause of which was uncertain. She was treated for presumed mastitis; however, endometritis, intra-abdominal postoperative infection, or urosepsis were not excluded.