quivering lower lip

Sept07b2b

When nursing my LO's lower lip sometimes quivers for a few seconds.  I always assumed that this meant she either wanted more milk or was trying to slow the flow.  Does anyone know which one it is?  Just curious.  TIA! 

sarabrn

I always assumed it was because she was getting tired

mwitter80

I hope someone knows the answer. My little guy does this too, but it doesn't seem to have any purpose.

claudiaudia

andplusalso2011:

 It's usually caused by immaturity in the nervous system. They usually outgrow it within months.   Mine still does it every now and then at 9 months when he's tired. 

That's interesting! 

I had thought that it may have been something like when puppies/kittens do this, because they're trying to get more milk. I know babies aren't animals, but thought perhaps the principle is maybe the same.

TeacherVicky

andplusalso2011:

 It's usually caused by immaturity in the nervous system. They usually outgrow it within months.   Mine still does it every now and then at 9 months when he's tired. 

Exactly this.