What is the most common disease seen in dogs and cats presenting to veterinarians?

• A. Periodontal disease
• B. Otitis externa
• C. Renal disease
• D. Diabetes mellitus

Answer: (A)

Dental disease, specifically periodontal disease, is the most common condition veterinarians see in dogs and cats. It starts with the buildup of dental plaque and calculus, triggering gingivitis (red, inflamed gums). If not addressed, it progresses to periodontitis, where the tissues supporting the tooth are damaged and the tooth may be lost. This high prevalence comes from the fact that plaque begins forming soon after teeth erupt and is common across ages, making periodontal disease the primary dental treatment reason in routine practice. Students should recognize the signs early—bad breath, tartar, reddened or bleeding gums, and reluctance to eat hard foods—and understand that effective management combines professional cleanings (often under anesthesia) with ongoing home care like tooth brushing and appropriate diets or chews to reduce plaque buildup. While other issues such as otitis externa, renal disease, and diabetes mellitus are important veterinary concerns, periodontal disease remains the most frequently encountered condition when animals present for dental or oral health issues.