My Ninya has one on her leg when she was about 7 months old. I showed her with it- she was a puppy getting her ring experience anyways and it was not that noticable. Hers went away in about 2 months.
My Bru also had one this year- his took about 5 months to go away but he is an older guy and it was on his foot.
Brutus and Amaya's Mom
UAGII UCD Brutus CD RE
UAGI Amaya RN NA OAJ
Regal's Full of TENder Grace