Yorkie bold spot

Question
I noticed about 3 days ago that my female Yorkie has a bold spot near her tail area. the size of the bold spot is about 1.5inch in diametet

Answer
Ed -

Take your dog to the veterinarian for an examination.  There are literally hundreds of reasons why your dog would have a bald spot.  I cannot diagnose the problem without the benefit of a physical exam.

Best Regards,

Charlotte Sherrell,DVM