It is possible that the main title of the report Vitiligo is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
The life span of a Bull Terrier is 11 - 14 years.
Boston Terriers, being a small breed, have an average lifespan of 12-14 years. And with 12-14 years being the average, it goes without saying that there are those individuals that outlive the projected life expectancy and those who fall short of reaching it.