Boxer dogs typically live for 11 to 14 years. This breed is susceptible to a number of genetic diseases that could potentially be fatal, including aortic stenosis and dilated cardiomyopathy. The risk of a boxer developing these health issues can be mitigated through the use of high breeding standards.
Aortic stenosis is a blood flow disorder caused by an obstruction from the left ventricle in the heart of boxers and other large breeds, including golden retrievers and German shepherds. A severe case could cause sudden death. Dilated cardiomyopathy is a disease characterized by an enlarged heart, causing lethargy, excessive breathing and potential cardiac arrest. This disorder is typically fatal within six to 24 months after diagnosis.