My husband and I discovered that London had: Ankyloglossia also known as tongue-tie, which is a congenital oral anomaly which may decrease mobility of the tongue tip and is caused by an unusually short, thick lingual frenulum, a membrane connecting the underside of the tongue to the floor of the mouth.
London inherited this genetic trait from her father but we had it fixed by a nose, throat, and ear M.D. as it was affecting her breastfeeding sessions. She was still having trouble latching on to my right side so I was told by my Homeopathic M.D. to buy this crafty little thing and it worked like magic!
Breastfeeding no longer hurt and she was getting full on each feeding session! I purchased mine at Target for $9.99, this shield helps with latching difficulties and so much more! They have different sizes as each woman's breast and nipple is not the same size.
To learn more go to: MEDELA and read up on this crafty device.