Dog Behavioral Problems Are Not

Introduction

For decades, the phrase "dog behavioral problems" has been used to describe a wide range of undesirable actions, from excessive barking and aggression to destructive chewing and house-soiling. However, a growing body of veterinary research challenges this simplistic label. The central thesis of this article is that dog behavioral problems are not simply acts of defiance, stubbornness, or "badness." Instead, they are complex clinical presentations that frequently signal underlying medical conditions, chronic pain, environmental stressors, or deficits in welfare.

This paradigm shift is supported by recent scientific literature. A 2025 study by Hinze et al. [1] highlighted how breed-specific health issues, such as those prevalent in French Bulldogs, can manifest as behavioral changes. Similarly, research by Batista et al. (2026) [9] developed a chronic pain perception scale for dogs, underscoring that pain is a primary driver of behavioral change. This article provides a comprehensive, evidence-based overview for veterinarians, veterinary students, and dedicated pet owners, integrating the latest findings from global research.

Quick Q&A

Question: My dog has started growling and snapping when I touch his back. Is he just being aggressive?

Answer: No. Growling and snapping are often signs of pain rather than aggression. A 2026 study developed a chronic pain scale for dogs, confirming that behavioral changes like guarding or irritability are common indicators of underlying pain [9]. A thorough veterinary examination is essential to rule out conditions such as intervertebral disc disease, arthritis, or neuropathic pain [39].

The Medical Model: Pain, Disease, and Behavior

Pain as a Primary Driver

One of the most critical insights from recent veterinary science is the recognition that many "behavioral problems" are direct expressions of pain. The development and validation of a chronic pain perception scale for dogs by Batista et al. (2026) [9] provides a structured method for clinicians to assess this link. Dogs experiencing chronic pain may exhibit:

• Reduced activity or reluctance to exercise
• Increased irritability or aggression (especially when touched)
• Changes in sleep patterns
• Excessive licking or biting at a specific area
• Withdrawal from social interaction

A case report by Santifort et al. (2023) [39] specifically described how neuropathic pain after spinal surgery in a Dachshund was initially misinterpreted as undesirable behavior. This highlights the critical need for a thorough pain assessment before labeling a behavior as purely behavioral.

Endocrine and Metabolic Disorders

Hormonal imbalances can profoundly affect canine behavior. For example, hypothyroidism in dogs can present with lethargy, cognitive dullness, and increased anxiety or aggression. Similarly, Cushing's disease (hyperadrenocorticism) may lead to restlessness, panting, and changes in sleep-wake cycles. A 2025 study on anxious dogs using plasma proteomic profiling identified specific protein biomarkers associated with anxiety states, suggesting a biological basis for these behaviors [12].

Gastrointestinal Health and Behavior

The gut-brain axis is increasingly recognized as a modulator of behavior in dogs. Chronic enteropathy, a common gastrointestinal condition, has been shown to significantly affect quality of life for both dogs and their owners [16]. Dogs with chronic digestive issues may display:

• Irritability or aggression around meal times
• Pica (eating non-food items)
• Excessive licking of surfaces
• Restlessness or pacing

Lyngby et al. (2024) [16] noted that veterinarians must be proficient in recognizing the caregiver burden associated with these conditions, as owner stress can exacerbate the dog's behavioral issues.

The Welfare Perspective: Environmental and Social Factors

The Impact of Housing and Routine

A dog's environment is a powerful determinant of behavior. Research by Silbermann and Gansloßer (2023) [35] examined factors influencing isolation behavior and separation anxiety. Their study found that dogs with inconsistent daily routines, limited physical exercise, and insufficient mental stimulation were significantly more likely to exhibit distress behaviors during owner absence. This aligns with the broader welfare literature, which emphasizes that behavioral problems are often symptoms of poor welfare rather than inherent defects [36].

The Role of Attachment and Owner Compatibility

The human-animal bond is a two-way street. Hawkins et al. (2025) [11] explored the connection between pet attachment and owner mental health, finding that owner-pet compatibility and perceived pet welfare were crucial factors. When there is a mismatch between a dog's needs (e.g., high exercise requirements for a Border Collie) and the owner's lifestyle, behavioral issues frequently emerge. This is not a "problem" with the dog, but a welfare concern that requires management.

Pandemic-Related Behavioral Changes

The COVID-19 pandemic provided a natural experiment in canine behavior. Merritt et al. (2025) [15] studied a UK cohort of dogs reaching early adulthood during the pandemic. They identified that pandemic-related risk factors, such as reduced socialization and changes in owner work patterns, were associated with increased problem behaviors. This reinforces the idea that behavior is highly context-dependent and not a fixed trait.

Breed, Genetics, and Temperament

The Genetics of Behavior

Behavior is heritable, but it is not destiny. A phenome-wide study by Eyre et al. (2026) [3] connected behavioral genetics in odor detection dogs with temperament traits. This research identified specific genetic markers associated with traits like sociability and fearfulness. However, the authors emphasized that genetics interact with environment and training.

Ethical Concerns in Breed Selection

The push for "fashionable" dog breeds has led to selection for extreme physical traits that compromise welfare. Menor-Campos (2024) [29] raised ethical concerns about fashionable dog breeding, noting that brachycephalic breeds (e.g., French Bulldogs, Pugs) often suffer from respiratory distress, which can manifest as irritability or reduced playfulness. Hinze et al. (2025) [1] confirmed high disease prevalences in French Bulldogs in Germany, linking health status directly to behavioral outcomes.

Breed-Specific Behavioral Tendencies

Pongrácz and Lugosi (2024) [20] demonstrated that functional breed selection influences human-directed gazing in problem-solving tasks. Cooperative breeds (e.g., retrievers) were more likely to seek human help, while independent breeds (e.g., hounds) were more persistent on their own. Understanding these innate tendencies is crucial for tailoring behavioral interventions.

The Role of Training Methods

Aversive vs. Reward-Based Training

The methods used to train dogs have a profound impact on their behavior and welfare. Johnson and Wynne (2024) [25] surveyed dog guardians in the United States about training methods, finding that aversive techniques (e.g., prong collars, shock collars) were still commonly used despite evidence of negative welfare outcomes. These methods can induce fear, anxiety, and aggression, creating a cycle of worsening behavior.

Equipment and Welfare

A related study by Johnson and Wynne (2024) [18] compared the efficacy and welfare impacts of four types of leash walking equipment. They found that while some equipment reduced pulling, certain types (e.g., head halters) were associated with signs of stress. The authors concluded that equipment choice should be guided by individual dog welfare, not just behavioral outcomes.

The Promise of Technology

Rowland et al. (2025) [14] investigated the association between a dog-training app (Zigzag) and behavioral problem prevention. Their findings suggest that accessible, evidence-based training resources can help prevent problems before they become entrenched. This is a promising avenue for public health in veterinary behavior.

Specific Behavioral Presentations: A Clinical Approach

Separation Anxiety and Isolation Distress

Separation anxiety is one of the most common reasons for veterinary behavioral consultation. Silbermann and Gansloßer (2023) [35] identified key factors influencing isolation behavior, including owner attachment style and the dog's cortisol response. Treatment should address:

• Environmental enrichment (e.g., puzzle toys, background noise)
• Gradual desensitization to departure cues
• In some cases, pharmacological support (e.g., trazodone, though note that pharmacokinetic data exist for parrots [21], not dogs; mirtazapine has been reviewed in dogs [34])

Aggression

Aggression is a complex, multifactorial problem. It is often a symptom of pain, fear, or resource guarding. A study by Gerken et al. (2024) [31] found correlations between aggression at the veterinary clinic and problem behaviors at home in cats, and similar principles apply to dogs. A thorough medical workup is essential before any behavioral modification plan.

Canine Cognitive Dysfunction (CCD)

In older dogs, behavioral changes such as disorientation, changes in social interactions, and house-soiling may indicate CCD, a neurodegenerative condition similar to Alzheimer's disease in humans. Bognár et al. (2024) [26] studied the behavioral effect of short-term cognitive and physical intervention therapies in old dogs, finding that both types of intervention improved cognitive function. This underscores that "behavioral problems" in senior dogs are not normal aging but treatable medical conditions.

The Veterinary Consultation: From Diagnosis to Management

The Importance of a Comprehensive History

A detailed behavioral history is the cornerstone of diagnosis. This should include:

• Onset and progression of the behavior
• Context (where, when, with whom)
• Medical history and current medications
• Diet and exercise routine
• Social environment (other pets, humans)

Physical and Neurological Examination

A complete physical examination is mandatory. The 2026 chronic pain scale [9] can be used to quantify pain-related behaviors. Neurological assessment is particularly important for cases of sudden aggression or altered mentation, as conditions like brain tumors or seizures can present as behavioral change.

Diagnostic Testing

Depending on the presentation, diagnostic tests may include:

• Complete blood count and biochemistry panel
• Thyroid hormone levels (T4, TSH)
• Urinalysis
• Imaging (X-rays, ultrasound, MRI) to rule out pain sources
• In some cases, advanced proteomic profiling [12]

Treatment Planning

Treatment should be multimodal, addressing medical, environmental, and behavioral factors. This may include:

• Pain management (e.g., NSAIDs, gabapentin)
• Environmental modification (e.g., increased enrichment, routine changes)
• Behavioral modification (e.g., counter-conditioning, desensitization)
• Pharmacological support (e.g., fluoxetine, clomipramine, mirtazapine [34])
• Referral to a veterinary behaviorist for complex cases

Regional Considerations in Veterinary Behavior

North America

In the United States and Canada, the AVMA and AAHA provide guidelines for pain management and behavioral health. Tick-borne diseases (e.g., Lyme disease, ehrlichiosis) are common in certain regions and can cause joint pain and behavioral changes. The Cornell College of Veterinary Medicine offers resources on feline and canine behavior.

Europe

The Federation of Veterinarians of Europe (FVE) emphasizes animal welfare as a core component of veterinary practice. European studies, such as those from Germany [1] and the UK [15], provide valuable data on breed-specific health and behavior. Rabies vaccination status is relevant for travel and quarantine.

Australia

Australia is rabies-free, which influences quarantine regulations. However, Australian veterinarians must be vigilant for tick paralysis (Ixodes holocyclus), which can cause acute behavioral changes such as weakness, vomiting, and altered mentation. The Australian Veterinary Association (AVA) provides guidelines on tick prevention and treatment.

Conclusion

Dog behavioral problems are not what they appear to be. They are not acts of spite, dominance, or malice. Instead, they are complex, multifactorial presentations that demand a rigorous, compassionate, and evidence-based approach. From chronic pain [9] and gastrointestinal disease [16] to genetic predispositions [3] and environmental stressors [35], the causes are diverse but the message is clear: behavior is a window into the dog's physical and emotional state.

As veterinary professionals and dedicated pet owners, our responsibility is to look beyond the label and ask, "What is this dog trying to tell us?" By doing so, we can improve welfare, strengthen the human-animal bond, and provide effective, humane care.

References

1. Hinze MAG, Meyer KOH, Heilmann RM, et al. Health status and disease prevalences in French bulldogs in Germany: insights from a survey-based study. Companion Anim Health Genet. 2025. [1]
2. Henríquez-Hernández LA, Martín-Cruz B, Luzardo OP, et al. Perception of Dog Welfare in Veterinary Students: A Six-Year Study of Ethical Priorities, Cohort Variation, and Influencing Factors. Animals (Basel). 2026. [2]
3. Eyre AW, Zapata I, Fraire J, et al. Phenome-wide study connects behavioral genetics of odor detection dogs with temperament traits. Sci Rep. 2026. [3]
4. Baffsky R, Wong QJJ, Cullen P, et al. Using a Multicomponent Implementation Strategy to Increase Adoption and Effectiveness of a Universal Mental Health Prevention Program in Australian Primary Schools. Prev Sci. 2026. [4]
5. Arvilla-Salas L, Vazquez-Reyes S, de Santiago AS, et al. Dietary Intake Patterns, Substance Use and Their Association with Anxiety and Depression Symptoms in Medical Students in Mexico. Nutrients. 2025. [5]
6. Wong WHS, Chen C, Tso A, et al. Dog-assisted therapy on Hong Kong children with autism spectrum disorder. Eur J Pediatr. 2026. [6]
7. Yatirajula SK, Maulik PK, Kallakuri S, et al. Adolescent Resilience-Building In Urban Slums (ANUMATI 2.0). Trials. 2025. [7]
8. Sanatkar S, Lipscomb R, Petrie K, et al. A systematic review and meta-analysis of the effectiveness of work-focused interventions for employees with symptoms of depression, anxiety, and psychological distress. Int Arch Occup Environ Health. 2025. [8]
9. Batista MT, Lavrador C, da Graça-Pereira G. Development and validation of a chronic pain perception scale for dogs: Structural validity and reliability. Vet Rec. 2026. [9]
10. GBD 2023 Demographics Collaborators. Global age-sex-specific all-cause mortality and life expectancy estimates for 204 countries and territories. Lancet. 2025. [10]
11. Hawkins RD, Ellis A, Robinson C. Exploring the connection between pet attachment and owner mental health. PLoS One. 2025. [11]
12. Gaither C, Popp R, Borchers CH, et al. Plasma Proteomic Profiling of a Group of Anxious Dogs by LC-MS/MS: A Case-Control Study. Proteomics Clin Appl. 2025. [12]
13. Abdai J, Lévai Z, Gedai Z, et al. Not the presence but the timing of acoustic signals influence dogs' behaviour toward an artificial agent. Sci Rep. 2025. [13]
14. Rowland T, de Assis L, Menteith C, et al. Educational Apps and Dog Behavioural Problem Prevention: Associations Between the Zigzag Dog-Training App and Behavioural Problems. Animals (Basel). 2025. [14]
15. Merritt BL, O'Neill DG, Brand CL, et al. Lasting lockdown love? Problem behaviour and pandemic and non-pandemic related risk factors. PLoS One. 2025. [15]
16. Lyngby JG, Nielsen LN, Ankerkilde S, et al. Chronic enteropathy in dogs affects the quality of life in both dogs and their owners. Front Vet Sci. 2024. [16]
17. Ganzevoort COW, Wolters LH, Hornstra R, et al. Intensive treatments for children and adolescents with anxiety or obsessive-compulsive disorders. J Anxiety Disord. 2024. [17]
18. Johnson AC, Wynne CDL. Comparing efficacy in reducing pulling and welfare impacts of four types of leash walking equipment. PeerJ. 2024. [18]
19. Henríquez-Hernández LA, García-Serrano I, Quintana-Hernández DJ, et al. Single-dose 1cp-LSD administration for canine anxiety: a pilot study. Vet Res Commun. 2024. [19]
20. Pongrácz P, Lugosi CA. Cooperative but Dependent-Functional Breed Selection in Dogs Influences Human-Directed Gazing. Animals (Basel). 2024. [20]
21. Straub HM, Tully TN, Dirikolu L, et al. Pharmacokinetics of Trazodone in Hispaniolan Parrots (Amazona ventralis). J Avian Med Surg. 2024. [21]
22. Nujum ZT, Indu PS, Ramesh J, et al. Rabies death in an adolescent tribal girl diagnosed postmortem, in Kerala. Int J Equity Health. 2024. [22]
23. Massenet M, Philippe R, Pisanski K, et al. Puppy whines mediate maternal behavior in domestic dogs. Proc Natl Acad Sci U S A. 2024. [23]
24. Hitchcock M, Workman MK, Guthrie AP, et al. Factors associated with behavioral euthanasia in pet dogs. Front Vet Sci. 2024. [24]
25. Johnson AC, Wynne CDL. Training Methods Used by Dog Guardians in the United States. Animals (Basel). 2024. [25]
26. Bognár Z, Szabó D, Turcsán B, et al. The behavioural effect of short-term cognitive and physical intervention therapies in old dogs. Geroscience. 2024. [26]
27. King C, Smith TJ, Kabrick K, et al. Physical and behavioural health of dogs belonging to homeless people. Anim Welf. 2024. [27]
28. Koralesky KE, Rankin JM, Fraser D. Using institutional ethnography to analyse animal sheltering and protection II: Animal shelter work. Anim Welf. 2023. [28]
29. Menor-Campos DJ. Ethical Concerns about Fashionable Dog Breeding. Animals (Basel). 2024. [29]
30. Dzik MV, Carballo F, Cavalli C, et al. What if the reward is not as yummy? Study of the effects of Successive Negative Contrast in domestic dogs. J Vet Behav. 2024. [30]
31. Gerken A, Lee K, Bain M, et al. Correlation between aggression at the veterinary clinic and problem behaviors at home for cats in the USA. J Feline Med Surg. 2024. [31]
32. Weng HY, Ogata N. The impact of COVID-19 pandemic on pet behavior and human-animal interaction. Front Vet Sci. 2023. [32]
33. Gnanadesikan GE, Tandon D, Bray EE, et al. Transposons in the Williams-Beuren Syndrome Critical Region are Associated with Social Behavior in Assistance Dogs. Behav Genet. 2024. [33]
34. Argüelles J, Duque B, Miralles M, et al. Use of mirtazapine in the treatment of canine behaviour problems: A review of 32 cases. Vet Rec. 2024. [34]
35. Silbermann J, Gansloßer U. Factors Influencing Isolation Behavior of Dogs: A Holder-Based Questionnaire and Behavioral and Saliva Cortisol Responses during Separation. Animals (Basel). 2023. [35]
36. Adamaκopoulou C, Benedetti B, Zappaterra M, et al. Cats' and dogs' welfare: text mining and topics modeling analysis of the scientific literature. Front Vet Sci. 2023. [36]
37. Kis A, Radics E, Bolló H, et al. Methodological comparison of cancellation versus two-way choice spatial attention tests in humans and dogs. Front Vet Sci. 2023. [37]
38. Subotic-Kerry M, Werner-Seidler A, Corkish B, et al. Protocol for a randomised controlled trial evaluating the effect of a CBT-I smartphone application (Sleep Ninja) on insomnia symptoms in children. BMC Psychiatry. 2023. [38]
39. Santifort KM, Plonek M, Mandigers PJJ. Case report: Neuropathic pain versus undesirable behavior in a Dachshund after hemilaminectomy surgery for an intervertebral disc extrusion. Front Vet Sci. 2023. [39]
40. Hudson JL, Minihan S, Chen W, et al. Interventions for Young Children's Mental Health: A Review of Reviews. Clin Child Fam Psychol Rev. 2023. [40]