The effect of general anesthesia for the cesarean section varies according to anesthetic type, drug dosage and concentration of the anesthetics. Thus, the authors studied the effects of general anesthesia for twenties healthy parturients according to anesthetic agents. The method consisted of administration of halothane(Group I, N=IO) or a combination of fentanyl and droperidol(GroupII, N=10). We checked the hemoglonin value, rbc number on the pre-operative day, immediate post-operative, post-operative seocond and post-operative fifth day. The results were as follows. In Group I, hemoglobin value and rbc number significantly decreased on the post-operative secone and fifth day(p<0.025). But in Group II, there are no differences in hemoglonin value and RBC number.