OverviewUnder the influence of maternal hormones during pregnancy a newborn may exhibit signs of hormone exposure after birth, such as enlarged breasts. In addition to the breast enlargement, there may be some discharge from the nipples. This too is common and should be of no concern, disappearing within 2 weeks. The discharge is called witch's milk.
Update Date 2/21/2013
Updated by: Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, Bethanne Black, Stephanie Slon, and Nissi Wang.