Lacy went from black to blue and then to silver which progressively got lighter and lighter as she aged. Around 12 years or so it started coming in very black again right at the part down her back. She was diagnosed with Cushing's disease shortly after I noticed this, but I took her to the vet because she was eating enormous amounts. So in looking back I think she was losing her hair and it was new hair coming back in. Cushing's isn't usually diagnosed until a dog is much older than yours so I don't think you have to worry about Cushings, but maybe look into a coat supplement or other hormonal causes if you think she is loosing hair. |