The Boston Terrier is a lively, highly intelligent, smooth coated, short-headed, compactly built, short-tailed, well balanced dog, brindle, seal or black in color and evenly marked with white. The head is in proportion to the size of the dog and the expression indicates a high degree of intelligence.
The body is rather short and well knit, the limbs strong and neatly turned, the tail is short and no feature is so prominent that the dog appears badly proportioned. The dog conveys an impression of determination, strength and activity, with style of a high order; carriage easy and graceful.
This is a brachycephalic breed so care must be taken that they do not become overheated in warm weather. In cold weather they should have a sweater or coat and must not be outside too long. Building a good relationship with your veterinarian is essential; you will work as a team throughout the dog's life. Bostons should see the veterinarian for an annual wellness visit that will include a check for parasites and may include bloodwork. Bostons' eyes are easily hurt so check them daily and see a veterinarian when any injury is noted.
An effective regimen to keep your dog free of fleas and ticks is important. All Bostons considered for breeding should have an annual eye exam by an ACVO veterinarian and luxating patella exam every two years. A BAER hearing test and a DNA test for the gene causing early-onset hereditary juvenile cataracts should be done once in the dog's life, before being bred.