I have been a Boxer enthusiast for many years and have done a lot of research on cancer rates in the breed. It is unfortunately true, Boxers do have a high rate of cancer compared to most other breeds. The best thing you can do is to consult with the breeder you are purchasing your pup from and see if cancer is very common in the lineage. In addition, feeding your boxer puppy Nutro Natural dog food provides natural anti-oxidants, cancer fighting agents. We also like to exercise Bentley (our boxer) frequently, give him a lot of love and attention, and stuff his Kong (chew toy) with fruits which have antioxidants as well. Don't let the possibility of cancer deter you from owning a breed that is warm, loyal, affectionate, great with children, handsome, courageous when needed, and loves to play! Good luck!