Janet-- Two things that you might check for: First, the frenulum, to see if the tongue is compromised. Second, the palate shape-- if the palate is particularly high or has a "bubble" spot, that could also account for the problem. Often babies with these things won't gain well, but they can..... I would want to do a digital suck exam to see how it feels on my finger; sometimes you can glean some clues from this. Let us know if you screened for the above. -Lisa ****************************************************************************** Lisa A. Marasco, IBCLC / [log in to unmask] International Board Certified Lactation Consultant / [log in to unmask] ******************************************************************************