
I have 3 chihuahuas Sully, Fynn, Rosie rescue, i have heard about the deafness with any white dogs but dont know much about the other things part from heart problems, but i think that comes with chihuahuas in general, i had a red smoothcoat boy Toby who died at few days off 16 years old of heart probs and 11 days ago lost one of our rescues Penny, long coat beige/white also with heart problems. When we got our Fynn she was a 'white' smoothcoat at 5 1/2 months old but is now over 2 years old her coat is till smooth but she is now champagne blonde? colour, so your boy might still change colour in time?