Cutting the frenulum under a newborn's tongue lacks scientific evidence and may negatively impact breastfeeding and cause pain.

“I think they're outrageous claims when it goes that far these are people who are also cutting the frenulum under the upper inside MH and sometimes the side of the tongue and the frenum under the tongue as all yeah so there's been babies that don't breastfeed because they're in pain from this and this practice is taking off like crazy it's driven a lot in dentistry it's in that lactation world of lactation Consultants could refer you to somebody and it's this Dogma that has never had any scientific evidence to support the claim”