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Why Do Dogs Like Dirty Underwear? 10 Vet-Verified Reasons

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Dr. Maja Platisa Photo

Reviewed & fact-checked by

Dr. Maja Platisa

In-House Veterinarian, DVM MRCVS

The information is current and up-to-date in accordance with the latest veterinarian research.

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Dogs being attracted to undies is not unusual. This strange habit should not be tolerated (even if you don’t find it nasty) as it could potentially cause harm. Seeing as that fabric is not edible, it could easily block their digestive tract, thereby leading to a myriad of issues.

In today’s article, we’ll be discussing reasons why dogs love digging into undies, with the hope of helping you find a solution to this problem. Read on if you’d like to learn more.

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The 10 Possible Reasons Why Dogs Love Dirty Underwear

1. Seeking Love and Protection

Dogs thrive on love and affection, and receiving it plays a big role in their happiness and sense of security. However, the way dogs show and seek affection can sometimes seem a little unorthodox to us. Many dogs are strongly drawn to their owner’s scent and may try to pick up on your scent, often by rubbing against or carrying around dirty clothing.

Instinctively, dogs may also seek out these familiar scents when they’re feeling anxious or in need of comfort, as your smell provides reassurance and a sense of safety.

dog staring its male owner
Photo Credit: StockSnap, Pixabay

2. Instincts

Dogs, especially breeds with strong scenting instincts, are often fascinated by items that smell strongly like their humans. Dirty underwear is particularly appealing because it carries a concentrated mix of skin oils and personal scent, making it far more interesting than most everyday objects.

While scent hounds were originally bred to track smells, this behavior isn’t limited to them. Many dogs, regardless of breed, will seek out strongly scented clothing. When a dog snatches a pair of knickers, they may parade around proudly or resist giving it up, not because they think they’ve caught prey, but because the item is rewarding, exciting, and sometimes comforting.


3. Lack of Exercise

Dogs often indulge in undesirable behavior if they feel neglected and bored. You can avoid this by making sure that your pooch gets the required amount of physical and mental stimulation daily. Breeds such as the Border Collie and the German Shepherd will demand a lot more from you compared to other dogs, even at the senior stage.

Digging through dirty undies can be a sign that they have pent-up energy due to a lack of physical or mental activity.

young woman sitting on the floor with doberman pinscher dog
Image Credit: gemphoto, Shutterstock

4. Boredom

Understanding a dog’s needs can be difficult at times. They are sometimes restless even after going through an intense workout, not because they want more, but because they are bored. That boredom normally leads to frustration, which ultimately triggers undesirable behavior. Some dogs may chew their owner’s couch, destroy the carpets, or even steal dirty undies.

Lucky for you, this is preventable. You could provide some food puzzle games or play interactive games with them to make sure they’re mentally stimulated.


5. Pica

Pica is a condition in which dogs repeatedly chew and swallow non-food items. These objects often carry their pet parent’s scent, such as socks, towels, wet wipes, and underwear.

Dogs with pica may ingest a wide variety of inappropriate items, which can lead to serious health risks, such as a gastrointestinal blockage. If you suspect your dog has pica, it’s important to contact your veterinarian promptly. Warning signs can include vomiting, coughing or gagging, diarrhea, a bloated or painful abdomen, straining to defecate, or black, tarry stools—an indication of possible gastrointestinal bleeding.

The exact cause of pica isn’t fully understood. It’s considered a multifactorial condition that may be linked to nutritional deficiencies, underlying medical problems, anxiety, boredom, stress, or compulsive behaviors. A veterinary exam is essential to identify the cause and prevent complications such as intestinal blockages.

DOG MISCHIEF. FUNNY AND GUILTY JACK RUSSELL DESTROYED A FABRIC AND FLUFFY BALL AND TOYS AT HOME
Photo Credit: smrm1977, Shutterstock

6. Teething

Teething is a normal part of puppy development and can cause mild gum discomfort. During this stage, puppies naturally chew on things to soothe their gums.

Soft items like your underwear are especially tempting because they feel good to chew and carry your scent. Providing plenty of chew toys, along with regular physical exercise and mental stimulation, can help manage this behavior and redirect their chewing to appropriate items.


7. Waste Materials Attract Canines

Dogs are naturally curious about feces, and sniffing it is a normal way for them to gather information. Through scent, they can learn about diet, health, and even some chemical signals related to stress or hormones. If clothing carries traces of fecal matter, it may attract a dog, although not every dog will go for it. Historically, early domesticated dogs may have scavenged human waste, which could explain part of this behavior, but today, it’s not a safe or healthy thing for dogs to eat.

Overflowing laundry basket
Image Credit: Paul Michael Hughes, Shutterstock

8. Dogs Are Scent-Oriented

One of the prime differences between humans and dogs is that we rely primarily on vision to interpret what’s going on around us, while dogs rely on their sense of smell. Did you know a dog’s sense of smell is said to be 10,000 times or more better than ours, when it comes to certain scents? Your underwear has scents that tell them valuable information about you.


9. You’re Being Missed

A dog is a man’s best friend, and anytime you’re not around, some may become miserable. If you’ve left them alone for too long, they may look for ways to alleviate the heartache. Replacing you with your undies may offer comfort due to the scent. Dare we say, it’s the next best thing!

dachshund dog looks sick lying on its owner
Image Credit: Leka Sergeeva, Shutterstock

10. The Smell of Blood

In the animal kingdom, we have three main groups of species: omnivores, herbivores, and carnivores. Dogs are omnivores, meaning they love eating meat and are drawn to the smell of blood. Needless to say, your dog may dig through your laundry bin looking for underwear during periods of menstruation.

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Dogs like underwear for various reasons, and you can never know for sure why your canine friend is drawn to your knickers. As previously mentioned, this behavior could be the result of an underlying health issue, so you should talk to a vet if it becomes a habit.


Featured Image Credit: LightField Studios, Shutterstock

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