Breast feeding is very effective on infants’ good health both mentally and
   physically. It prevents children from dying of malnutrition , respiratory infection
   and diarrhea which are the main causes of death among them. Up to now ,
   little attention has been paid to the relation between breast-feeding and the
   type of delivery. Regarding the increasing number of cesarean childbirth , the
   relation deserves special attention. So the aim of this research is to study it
   statistically.

          The present study is  descriptive-analytic . First , 400 mothers out of those
   who did not have relative or absolute prohibition of breast-feeding and whose
   infants were 4 months old or even older and had no difficulty in their sucking
   reflection with explained or unexplained causes were randomly chosen from 10
   health care centers out of 28 in Hamadan. (200 mothers with natural childbirth –
   200 with cesarean childbirth). The data including age , parity , education ,
   receiving appropriate instruction in breast-feeding , occupation , type of
   delivery and breast-feeding success were collected using the patients’ files or
   through interview.

          The two groups had no significant difference in their ages, parity and
   education. Appropriate instruction of the group with natural childbirth was
   95% and in caesarian group was 85%. Breast feeding success among mothers
   with natural child birth was 81% (163 persons) and  in comparison with (64% 129
   persons) cesarean group was quite significant. Moreover, the breast-feeding
   failure among mothers who had natural childbirth (11.5%, 23 persons) had been
   mainly occurred after exclusively breast-feeding  for 3-4 months while the
   majority of mothers with cesarean delivery (75%, 50 persons) had failed to
   breast-feed their infants exclusively  in less than 2 months.

          Natural childbirth and instruction of mothers had considerable effect on
   breast-feeding success for four or more months.