Bacterial colonization of human milk.

Because human milk is being used more and more for feeding neonates, many hospitals are struggling with the issue of culturing. The literature indicates that human milk is hardly ever sterile. Since there has been much debate concerning protocols and frequency of culturing milk specimens, we evaluated our facility's protocol, the aim of which was to assure clean collection and transportation of the mothers' milk. We studied two large sectors of patients; private and nonprivate (service). Both sectors had a similar contamination rate with the same type of organisms. Private pediatricians generally ordered more cultures per patient than did the service (nonprivate) pediatrician. We challenge the need for all these cultures, which increase the patients' cost.