Skin discoloration normal?

Hi all,

I recently notice that my puppy (a terrier mix) has some skin discoloration around her mouth.  Her lips are normally black, but she has developed some pinks spots.  There is no texture to the spots, only a color change.  Any thoughts on what this could be or if I should be worried?

Thanks!

1
Mapping: DefaultPageMap
Map Field: TopLeft
Ad Slot: PW1_RON_Top_Left
Size Mappings: Desktop Only
Mapping: DefaultPageMap
Map Field: TopRight
Ad Slot: PW1_RON_Top_Right
Size Mappings: Top_Right
Submit your own photos!
Dog Breeds Selector

Find your perfect match based on activity level, size, intelligence and more!

Mapping: DefaultPageMap
Map Field: BottomRight
Ad Slot: PW1_RON_Btm_Right
Size Mappings: Btm_Right