Hello. I am in great need of a complete hysterectomy. I have multiple and large uterine fibroids. I am also very anemic (due to heavy periods n fibroids). The Doctor has put me on medication (megestrol)to stop my period while building my blood thru large amounts of iron, however I continue to bleed. According to my Doctor I may to to proceed with a hysterectomy sooner than planned. My blood level was 5.5 in September. It is now 6.8. How low can my hemoglobin be and still have a bloodless surgery?