Behavioral Quirks or Signs of Stress? A Look Into Blanket and Flank Sucking in Dogs
Written by Lauren Tsao, MS, CDBC, CPDT-KA
Photo shows puppy suckling on blanket.
Recently, I received an email from a dog owner regarding a unique behavior observed in their 2 year old Doberman Pinscher. The dog, a sweet and affectionate rescue, frequently engages in “suckling” on various objects, including blankets, their own flank, and even their owners' hands. While the owner was told this behavior could indicate the dog feels safe, they sought clarification to ensure it wasn’t a sign of stress or other underlying issues. This question inspired me to delve deeper into the fascinating world of blanket and flank sucking behaviors, particularly in Doberman Pinschers, which have been the focus of scientific research due to their unique predisposition to such behaviors.
What Is Blanket and Flank Sucking?
Blanket and flank sucking are behaviors commonly seen in Doberman Pinschers, but I have seen this occur in other breeds. Dogs engaging in blanket sucking will mouth and suck on fabrics, often combined with kneading motions resembling those of a nursing puppy. Flank sucking involves repetitive mouthing and sucking on the dog's flank region, sometimes resulting in hair loss or skin irritation. These behaviors are categorized as non-nutritive suckling and are often associated with anxiety or comfort-seeking mechanisms. Studies, including this one published in the Journal of the American Veterinary Medical Association (JAVMA), have explored these behaviors, identifying them as compulsive disorders potentially linked to genetic predisposition.
Key Research Findings About Blanket and Flank Sucking
Behavioral Patterns and Triggers
According to the study, blanket and flank sucking are triggered by two primary scenarios: inactivity and heightened arousal. During periods of relaxation, such as bedtime or cuddling with their owners, dogs may engage in suckling behaviors as a self-soothing mechanism. Conversely, heightened states of arousal, like during loud noises, dog shows, or after being separated from their owner, can also prompt this behavior.
Interestingly, the study highlighted that these behaviors typically develop early in life, often before the dog reaches sexual maturity. Flank sucking tends to emerge later than blanket sucking, and while the behaviors are similar, they may not be identical in origin.
Potential Links to Pica and Compulsive Disorders
The same study discusses how blanket sucking can lead to the dog chewing the fabric and then sometimes ingesting the fabric, also known as pica. This link suggests that these behaviors may fall on a spectrum of compulsive disorders in dogs. Understanding this connection is important for tailoring interventions to manage or mitigate the behaviors.
Owner Perceptions and Impact
While many owners view blanket sucking as an endearing trait, this study revealed that some dogs engage in these behaviors to the point of causing physical harm, such as skin lesions or gastrointestinal blockages from ingested fabric. It’s important that owners are able to recognize when this seemingly harmless behavior crosses into harmful territory.
Why Understanding This Behavior Matters
Blanket and flank sucking offer a window into a dog’s emotional and psychological state. For rescue dogs, like the one described in the owner’s email, such behaviors can be a coping mechanism rooted in their early experiences. The Doberman Pinscher in the inquiry was malnourished and neglected before rescue, conditions that could contribute to a heightened need for self-soothing behaviors.
As highlighted in related studies, early weaning might predispose some dogs to develop non-nutritive suckling behaviors. Understanding a dog’s background can provide important context for addressing these behaviors effectively.
Research has pointed to a genetic component in compulsive disorders, including blanket and flank sucking. This aligns with observations in other compulsive behaviors, such as tail chasing or acral lick dermatitis. Recognizing these patterns can guide both owners and professionals in developing management strategies that prioritize the dog’s well-being.
Addressing Blanket and Flank Sucking
If your dog exhibits blanket or flank sucking, it’s important to monitor the behavior closely. Look for patterns in when and where the behavior occurs and assess whether it interferes with their daily life or causes harm. Providing alternative outlets, such as safe chew toys, snuffle mats, lick mats, or interactive play, can help redirect the behavior.
For persistent or harmful behaviors, consulting a veterinary behaviorist or experienced dog behavior consultant is an important step. Behavioral guidance calls, like the ones I offer, can help identify triggers and develop tailored behavior management/modification plans.
Photo shows Doberman Pinscher running in a field.
My experience with Dynamic Dog Assessments has shown that seemingly behavioral issues often have underlying physical or environmental triggers. For example, dogs with undiagnosed pain or discomfort may engage in repetitive behaviors as a coping mechanism. Thorough assessments that include gait analysis, posture evaluation, and environmental review can assess other potential influences on your dog’s behavior, leading to more effective solutions.
If you’re concerned about your dog’s blanket or flank sucking behaviors or any other behavioral challenges, I invite you to consider a Behavior Guidance Call with a Dynamic Dog Assessment. Together, we can uncover the factors influencing your dog’s behavior and develop a comprehensive plan to enhance their quality of life.
Don't wait for minor issues to escalate. Contact us today to schedule a consultation and take the first step toward a happier, healthier life for your dog.
Disclaimer: I am a professional dog trainer and certified dog behavior consultant, but I am not a veterinarian. The information provided in this article is for educational and informational purposes only and is not intended to be a substitute for professional veterinary advice, diagnosis, or treatment. Always consult with a qualified veterinarian regarding any medical concerns you may have about your dog’s health. If you suspect your dog is in pain or experiencing discomfort, seek the guidance of a licensed veterinary professional for proper assessment and treatment. Never disregard or delay seeking veterinary advice.
