Dogster is reader-supported. When you buy via links on our site, we may earn a commission at no cost to you. Learn more.

Lifestyle

Why Do Dogs Like Dirty Underwear? 9 Vet-Verified Reasons

Chris Dinesen Rogers
By Chris Dinesen Rogers · Reviewed & fact-checked by Dr. Maja PlatisaVet Approved
Dr. Maja Platisa
Reviewed & Fact-Checked byDr. Maja PlatisaDVM MRCVS (Veterinarian)
Maja joined our team in March 2023 as one of our in-house veterinarians. She is passionate about animals and their health and loves to help the readers with any issues or questions they have regarding their four-legged friends and other animal companions. Her passion is small animal medicine and emergency work, while she also has a great interest in animal welfare.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Learn more
Updated on June 27, 2026
Share
Fluffy dog playing with scrunchie, hair band or underwear clothes.

Undesirable behavior is possible among all canine breeds. Some dogs bark too much. Others are reactive. However, another frequently reported issue is destructiveness, which can include our clothes. While training, socialisation, and environment play a major role, genetics can also influence behavioral tendencies.1

Several possible reasons can explain why some dogs like dirty underwear. Many factors may be behind this unseemly behavior. You may be surprised to learn that you may unintentionally contribute to this behavior.

divider dog paws 3 oct 2024

The 9 Possible Reasons Why Dogs Like Dirty Underwear

1. Affection for Their Owner

Image Credit: Africa Studio, Shutterstock

Every pet owner believes their pup loves them. It turns out that this assumption is probably true as dogs form strong bonds with their humans. Research has shown that familiar scents, like those of an animal’s keeper, activate an area of the canine brain associated with positive emotions and rewards. While comparisons vary, dogs are often thought to have emotional capacities similar in some ways to young children, experiencing emotions like excitement, fear, and attachment.

As distasteful as it may seem to us, your dog may view your dirty clothes as a sign of you and deem them worthy of attention. It may be a canine way of being close to you by interacting with these items, which can also provide comfort, although curiosity and play behavior can also play a role.


2. Security

By the same token, a dog may feel comforted by your scent. Hanging out with your dirty laundry may help calm a stressed or fearful animal. You may even find your dog sleeping on your clothes. After all, that’s when an animal is most vulnerable.

Having your scent around them may help your pet sleep better with this feeling of security.


3. Teething

Image Credit: laolaopui, Shutterstock

Puppies will be puppies when everything is fair game, regardless of whether it’s appropriate or not. That includes your laundry. Everything goes into a pup’s mouth at that age. It’s a time of awareness when a dog is actively exploring its world. Luckily, it’s also a period when you can train a puppy and shift its attention from clothes to toys.


4. Just Another Toy

Dogs love playing with toys. For better or worse, some may resemble everyday household items, presumably to amuse pet owners more than the dogs. If your pet picks up and chews a piece of your clothing, it may be that they simply don’t know any better and prefer your underwear on the floor before another toy, due to familiar smells and rewarding textures, particularly if they haven’t yet learned which items are appropriate to chew.


5. They Like the Smell

Image Credit: PICNIC-Foto-Soest, Pixabay

Canines are better equipped in the olfactory department than humans. Their sense of smell is thousands of times more refined than ours, along with the brain area that interprets the signals. Your dog may be going after your underwear because they simply like the smell.

Their nose is giving them this information more so than their taste buds. Nevertheless, the result is the same.


6. Anxiety and Other Behavioral Disorders

Sometimes, inappropriate behavior has other causes that may warrant a vet visit. In some cases, repetitive or excessive chewing may be linked to compulsive tendencies or anxiety-related conditions. They often have complex underlying reasons instead of a simple lack of training on your part, which may include environmental and social stress, while genetics may play a part.

Treatment usually involves behavior modification and medication in some cases. Your pet may target your laundry simply because they happen to be around it.

Anxiety can cause many types of undesirable behavior, including destructiveness in cases of separation issues. Many things can trigger it, such as moving to a new home or changing your schedule. Remember the emotions we mentioned that dogs can experience, like stress and fear? They may drive your pet’s behavior. We recommend discussing the problem with a vet.


7. Resource Guarding

Some dogs are more territorial than others. It often depends on early socialization and training. If your dog is picking up or chewing your laundry, they may be guarding what they view as precious. It can occur if you bring home another pet.

The trick to curbing this behavior is redirecting your dog to more appropriate, high-value items and reinforcing commands like drop it or leave. It’s essential not to fuel the fire by leaving your clothes on the floor.


8. Boredom

Image Credit: Frank11, Shutterstock

Canines are intelligent animals. Daily mental stimulation is critical for their physical and mental well-being. The alternative is a bored dog, which is a recipe for disaster when it comes to your stuff. It can have serious consequences if your pet chews and swallows your clothing.

That could set the stage for emergency surgery to treat a gastrointestinal obstruction.


9. Nutritional Deficiency

Sometimes, chewing or ingesting unusual items can be linked to underlying health issues such as nutritional imbalances or gastrointestinal problems, although behavioral causes are more common. If your pet’s obsession with your clothes is something new, we recommend taking your pup to the vet to rule out an underlying medical condition that is at the root of the behavior.

divider dog paws oct 2024

Correcting the Unwanted Behavior

Discussing the situation with your vet can help determine what triggers this bad habit and figure out a way to remedy it. We suggest looking for any patterns in the behavior that may be the cause. Also, consider any changes to the regular routine that may be stressing your dog. If your vet has ruled out medical reasons, they may suggest behavior modification techniques.

Of course, an important way to stop this habit is by keeping your laundry off the floor. Don’t invite problems by making it easy for your pet. If you suspect your pet is bored or anxious, provide them with plenty of exercise and toys to occupy their time.

Interactive games, agility, and scent work will engage your dog and provide mental stimulation or enrichment. Long walks or a session at a doggy park can give your pup plenty of opportunities to sniff to their heart’s content.

Image Credit: bodnar.photo, Shutterstock
divider dog paws 2 oct 2024

Conclusion

Some dogs are chewers. They’ll pick up anything they see. However, it’s a risky behavior that can have serious health consequences if your dog swallows pieces of clothing. Therefore, it’s vital to identify the triggers and correct this habit.

We also suggest instructing your children to pick up their clothes to prevent this behavior.

Sources

Featured Image Credit: sophiecat, Shutterstock

The Dogster Newsletter

Expert dog care, straight to your inbox

News, insights, expert advice, and everything dog.

No spam — unsubscribe anytime.

By signing up, you agree to our Terms & Conditions and Privacy & Cookies Policy.

Click a star to rate. You can leave written feedback afterwards. (We read all feedback.)

Chris Dinesen Rogers
Authored by

Chris Dinesen Rogers

Why Does My Dog Eat My Underwear? 8 Vet-Reviewed Reasons & Prevention

Why Does My Dog Eat My Underwear? 8 Vet-Reviewed Reasons & Prevention

Our canine companions can do some pretty weird (and sometimes unsanitary) things. Whether it’s eating poop off the ground or rolling around in garbage, dogs do…

Misty Layne
By Misty Layne · 4 weeks ago
Why Does My Dog Steal My Underwear? 5 Vet-Verified Reasons & FAQ

Why Does My Dog Steal My Underwear? 5 Vet-Verified Reasons & FAQ

Underwear isn't usually expensive, but it can disappear fast when your dog gets a hold of it. Some pups are particularly fascinated with it, which is unfortuna…

Cassidy Sutton
By Cassidy Sutton · 4 weeks ago
Why Does My Dog Steal My Clothes? 6 Likely Reasons & What to Do

Why Does My Dog Steal My Clothes? 6 Likely Reasons & What to Do

Have you ever come home and found your favorite shoes getting chewed up by your beloved dog? Or did you think that the washing machine swallowed one of your so…

Kathryn Copeland
By Kathryn Copeland · 4 weeks ago
Why Do Dogs Like Socks? 4 Vet-Reviewed Reasons

Why Do Dogs Like Socks? 4 Vet-Reviewed Reasons

Our dogs are always getting into some sort of shenanigans! It’s hard to tell just why they want to eat the poop-filled baby diaper in the trash can or the piec…

Ashley Bates
By Ashley Bates · 4 weeks ago

Why Does My Dog Steal My Socks? 6 Vet-Reviewed Reasons & Solutions

Most dog owners can attest that clothing theft is an all-time favorite canine pastime. And if your canine is like most, it probably has a strong preference for…

Lorre Luther
By Lorre Luther · June 16, 2026
Why Does My Dog Steal My Socks? 6 Vet-Reviewed Reasons & Solutions

Why Do Golden Retrievers Like Socks So Much? Vet-Verified Risks & Prevention Tips

Golden Retrievers are well-known for their happy-go-lucky personalities and affection for people. A lesser-known fact about them is that many Golden Retrievers…

Jessica Kim
By Jessica Kim · June 17, 2026
Why Do Golden Retrievers Like Socks So Much? Vet-Verified Risks & Prevention Tips

What Smells Do Dogs Like Around Your House? 6 Vet-Reviewed Scents

Dogs have much more powerful noses than humans. While humans have about 6 million olfactory receptors, dogs possess 300 million olfactory receptors.1 A dog’s n…

Jessica Kim
By Jessica Kim · June 16, 2026
What Smells Do Dogs Like Around Your House? 6 Vet-Reviewed Scents

Why Do Dogs Like Stinky Things? Smelly Stuff They Love

Your dog’s sense of smell far surpasses yours—they do have a millions more scent receptors than you, after all. However, their scent receptors interpret smells…

Keri-Beth Clur
By Keri-Beth Clur · June 17, 2026
Why Do Dogs Like Stinky Things? Smelly Stuff They Love

Pica in Dogs: Vet-Verified Signs, Causes, Treatment & Prevention

Have you ever found your dog eating something they shouldn’t? It happens; dogs are fond of picking up anything they can find! But what if your pup consistently…

Misty Layne
By Misty Layne · June 29, 2026
Pica in Dogs: Vet-Verified Signs, Causes, Treatment & Prevention

Why Do Dogs Lick the Couch? 9 Vet-Reviewed Reasons for This Behavior

Dogs, our loyal and quirky companions, often engage in peculiar behaviors that leave us both amused and perplexed. One such puzzling habit is their inclination…

Kristin Hitchcock
By Kristin Hitchcock · June 29, 2026
Why Do Dogs Lick the Couch? 9 Vet-Reviewed Reasons for This Behavior

Why Do Dogs Like Stuffed Animals? 5 Vet-Reviewed Reasons

Dogs are like kids in many ways, including their affinity for stuffed animals. Many pups love getting their paws and mouths on soft plushies, whether to tear t…

Rachael Gerkensmeyer
By Rachael Gerkensmeyer · June 17, 2026
Why Do Dogs Like Stuffed Animals? 5 Vet-Reviewed Reasons

How to Wash Dog Urine Out of Towels & Laundry (6 Quick Steps)

Accidents happen, and when you own a dog, many accidents seem to involve poop or pee. Whether your puppy is trying to get the hang of housetraining or your sen…

Elizabeth Gray
By Elizabeth Gray · June 17, 2026
How to Wash Dog Urine Out of Towels & Laundry (6 Quick Steps)

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.

You may opt-out at any time. View our Privacy Policy for more information.

The Dogster app on a phone