Our mini poodle who is blind and around 13 years old went to the groomer at 9:15am. At 2:00pm I picked up our beloved dog and he had a 4 inch black stripe on his side. It was about 1 inch wide. I called the groomer. The groomer told me that poodles sometimes change colors. I said that I doubted that explanation. There was no black stripe when I dropped him off. The groomer said that the stripe was there and that I could not see it due to the long poodle fur. I do not believe the groomer. I will be taking our baby to the vet. Thank you for your assistance.