[Caney Creek]

Ditto on the above post. Boxers are a lean breed, and boxer puppies (under 2 years of age) are especially lanky. If your pup is healthy and still has plenty of energy, I highly doubt that her being thin is anything to be concerned about. I have a white female who is 2.5 years old now and is filled out very nicely but as a youngster she was skin and bones, especially before she was a year old. I don't have any pictures in my gallery of her at that age that really show how thin she was, but you could see all of her ribs at any given time. And, I swear that her being white made them even more obvious