My puppy has a belly button. : r/mildlyinteresting
Martensville Veterinary Hospital - Like an 'outie' belly button, an umbilical hernia typically presents as a bump on your pet's belly. This occurs when the abdominal muscles around the umbilicus don't close
Why Do Dogs Have Belly Buttons? - Puppy Leaks
Do Dogs Have Belly Buttons? | Psychology Today
Dogs do have belly buttons - but they aren't innies or outies like ours - Mirror Online
Do Dogs Have Belly Buttons? - Dr. Buzby's ToeGrips for Dogs
Do dogs have belly buttons? Are they visible or not?
Do Dogs Have Belly Buttons? – Dogs 'N Stuff
So ... Do Dogs Have Belly Buttons? – Furtropolis by Outward Hound