HI Elaine, Welcome to LACTNET and good luck on your exam. RPS refers to Reverse Pressure Softening which was coined by Jean Cotterman. She is on this list and could fill you in much better than I. If you do not get JHL yet, I highly recommend that you join ILCA and start receiving it. In the May issue were 2 article about areola edema and one of them is by Jean on RPS. Hope that helps. Ann Perry RN, IBCLC Boston, MA *********************************************** To temporarily stop your subscription: set lactnet nomail To start it again: set lactnet mail (or digest) To unsubscribe: unsubscribe lactnet All commands go to [log in to unmask] The LACTNET mailing list is powered by L-Soft's renowned LISTSERV(R) list management software together with L-Soft's LSMTP(R) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html