Veterinary science has traditionally focused on pathophysiology, microbiology, and surgery. However, a growing body of evidence confirms that behavioral signs are often the first indicators of underlying disease. Conversely, chronic pain or illness can manifest as behavioral pathology. This report examines this bidirectional relationship.

Companies now offer DNA tests that screen for genetic markers linked to aggression, noise phobia, and compulsive behaviors. While not deterministic (environment matters), this allows breeders to make informed choices and allows vets to begin preventative behavioral protocols in high-risk puppies as young as 8 weeks old.