I'm not exactly sure when they started to appear on my dog, maybe 6 months or so.
I think she was about 7 months old in this pic
This is her at 4 years.
Keep in mind her spots are more prominent because she has hair loss from demodedic mange as a puppy.
I think she was about 7 months old in this pic

This is her at 4 years.

Keep in mind her spots are more prominent because she has hair loss from demodedic mange as a puppy.