Veterinarians must distinguish between primary behavior disorders (e.g., canine compulsive disorder) and medical conditions causing behavioral signs.
| Observed Behavior | Potential Medical Cause | |----------------------|-----------------------------| | Sudden aggression (dog/cat) | Pain (dental, osteoarthritis), hypothyroidism, brain tumor, rabies | | House soiling (cat) | Urinary tract infection, chronic kidney disease, diabetes mellitus | | Excessive licking/scratching | Allergies, acral lick dermatitis, neuropathic pain | | Pica (eating non-food items) | Anemia, exocrine pancreatic insufficiency, GI parasites | | Night waking / vocalizing (senior pet) | Canine cognitive dysfunction (dementia), hypertension, sensory decline | A middle-aged Labrador Retriever suddenly snaps at the
Integrating animal behavior and veterinary science requires systemic change in the clinic. the aggression vanishes.
A veterinary behaviorist (DACVB or DECAWBM) is a specialist for complex cases. Refer if: chronic kidney disease
Note: General practitioners should treat underlying pain/inflammation first (e.g., osteoarthritis trial with NSAIDs) before labeling a case as "behavioral."
A middle-aged Labrador Retriever suddenly snaps at the children. A traditional trainer might recommend dominance-based correction. A veterinarian trained in behavior knows to run a full senior panel. The likely diagnosis? Hypothyroidism. Low thyroid hormones in dogs frequently manifest as aggression, fearfulness, and irritability. Once the thyroid supplement is administered, the aggression vanishes.