It sounds like lip tie, many people have it and it may or may not present issues. The usual issue is latching on while breastfeeding, pain to mother and lack of adequate milk transfer to infant, leading to lack of weight gain, and also early decay in upper incisors.
At seven your daughter is likely past that. If it hasn't presented any issues I would not consider surgery but others may feel differently.
Last edited by Asiago; 08-19-2014 at 06:27 PM.