My baby has white spots on the inside of her lips. What could that be?

White spots. White spots inside a baby"s mouth is usually thrush also called oral candidiasis.Call your doctor make an appointment and get proper therapy.Your docotor might also take the opportunity to discuss avoidance or prevention of this disease.
Common process. Babies feed so often that the inside of their mouth is a great environment for the growth of a yeast called candada albicans.The sugar of their feed is the yeasts main food.The yeast is around us all the time and all of us have some in our body. It can form a skim milk like lining to the oral skin or be thicker in patches.In some it will bleed. There are simple treatments to keep it under control.