Why Does My Shih Tzu Sniff the Same Spot Repeatedly?
Have you noticed your Shih Tzu stopping mid-walk or around the house to sniff the same spot over and over again? While this may seem out of place or unnecessary, this behavior is, for the most part, quite normal—and usually more interesting than you might think.
In this article, we will help explain why Shih Tzus (and dogs in general) want to sniff certain spots repetitively, what they are smelling, when it might be worth being concerned about, and whether or not you need to manage or redirect the behavior if it becomes compulsive. i hope you will understade promblem.
Is It Normal for Shih Tzus to Sniff the Same Spot Over and Over?

Yes, it’s perfectly normal. Dogs have a very powerful sense of smell – they can smell up to 100,000 times better than humans. What is simply “a patch of grass” to us could be a whole detailed scent narrative for your Shih Tzu.
For dogs, sniffing is a primary way of interacting with their environment. They can tell who has been to an area, as well as the gender, health, emotional state, and even what the animal had for dinner.
So when your Shih Tzu sniffs one spot excessively, then it is probably pretty dense with interesting or significant scents.
Common Reasons Your Shih Tzu Keeps Sniffing the Same Spot
1. Marking Territory
Dogs reveal their territory using urine, enclosure markings, and scent when roaming their domain. If another dog has already put a mark on a piece of turf, your Shih Tzu may stop and smell it over and over again to collect the information and possibly add their mark also.
- Outside: This behavior often happens to your Shih Tzu when they see another dog has recently marked the area or when you’re walking them in an open space where other dogs also walk.
- Inside: If you have multiple pets, there can be scent competition.
2. Detecting Other Animals
Shih Tzus have a naturally curious disposition. A location with a previous animal traffic— another dog, a cat, a squirrel— will have noticeable scent remnants. Your dog is probably using its nose for confirmatory purposes.
- There are also hormonal changes that dogs may pick up on such as another female dog in heat,
- Dogs and pets that your dog may pick up familiar scents.
3. Old or Lingering Scents
Scent may take time to dissipate and depending on the dog’s sensitivity, it may be apparent for a long time even when we think they have disappeared. A location with food or urine may be appealing to a dog for days or weeks.
4. Investigation or Curiosity
Dogs are natural detectives. Your Shih Tzu may simply sniff a location more than once because they feel they need more information. It is a way of processing the world around it, much like humans analyze or observe in a visual manner.
5. Stress or Anxiety
Another aspect to sniffing, could be a behavior of coping. If your Shih Tzu is anxious, then the sniffing may be simply a repetitive behavior to self-soothe, much like some human’s fidget when they are nervous.
- New environments, unfamiliar people, or loud noises can trigger this.
- You might also see other calming signals like yawning, licking lips, or pacing.
6. Obsessive-Compulsive Behavior (OCD)
If your Shih Tzu obsessively sniffs the same spot for long periods, multiple times a day, even when there’s nothing there, it could be a sign of canine OCD.
- Repetitive behaviors with no clear stimulus
- Difficulty being redirected
- Anxiety or stress-related triggers
If you suspect OCD, consult your veterinarian or a certified dog behaviorist.
7. Scent Memory
Dogs have a remarkable memory for smells. If an important event (like food, pee, or another dog) happened at a certain location, your Shih Tzu may continue to smell the area – even if the scent has mostly disappeared.
Is Indoor Repetitive Sniffing a Problem?
Sometimes. Occasional sniffing is normal. But if your Shih Tzu is always sniffing the same corner of the house or carpet, it may indicate:
- A urine spot not fully cleaned (even if it’s dry)
- Hidden food or crumbs
- Rodent activity or bugs behind walls or floors
- Previous presence of other pets
Use a black light to check for dried urine or consult a pest control expert if you suspect something behind the walls.
How to Tell If the Behavior Is a Concern
Watch for these red flags:
- Your Shih Tzu gets stuck sniffing and ignores commands
- Sniffing is paired with anxiety signs (pacing, whining, hiding)
- It happens for long durations or interferes with daily activities
- The spot is completely clean and still draws constant attention
If any of these apply, consult a vet to rule out health or behavioral concerns.
What to Do If Your Shih Tzu Sniffs the Same Spot Too Much
If your dog’s sniffing is harmless curiosity, there’s usually no need to stop it. But if it becomes obsessive or disruptive, try the following:
1. Redirect With Commands
Use commands like “leave it” or “let’s go.” Reward them when they obey.
2. Offer Mental Enrichment
Dogs sniff more when they’re bored. Offer puzzle toys, playtime, and training games to stimulate their brain.
3. Use Deterrent Sprays Indoors
Pet-safe deterrent sprays or vinegar can discourage repetitive sniffing in one spot.
4. Thorough Cleaning
Use enzymatic cleaners to eliminate all scent residues that attract your dog.
5. Create a Routine
Dogs with structure and consistent exercise are less likely to develop obsessive habits.
6. Seek Professional Help
If redirection fails and sniffing becomes a compulsion, a vet or dog trainer can assess for underlying behavioral issues.
Is It Okay to Let My Shih Tzu Sniff During Walks?
Yes—absolutely! Sniffing is a form of enrichment for dogs. It allows them to explore, gather information, and relax. In fact, letting your dog sniff on walks:
- Reduces anxiety
- Improves mental stimulation
- Strengthens your bond
Try alternating between “structured walk” time and “sniffing time” during outings.
Final Thoughts
It is natural for a Shih Tzu to sniff in the same location over and over again, as they tend to process their world through scent. It could be something as simple as another dog’s mark or a food remnant. For most dogs, repeated sniffing is completely normal behavior and is actually mentally stimulating and healthy for dogs.
However, if the sniffing behavior becomes obsessive or is associated with stress signs or is causing disruptions in your dog or daily life, I wonder if it may warrant further examination. With some observations, and mindful redirection and environmental management, your Shih Tzu can get all the sniffing they want without the sniffing becoming a problem. Thanks for reading.
FAQs
1. Why does my Shih Tzu keep sniffing the same spot on the floor?
It could be a leftover scent from food, pee, or another pet—even if it’s long gone. Dogs have very sensitive noses.
2. Should I let my dog sniff on walks?
Yes! Sniffing is enriching and mentally stimulating. It’s an important part of a healthy dog walk.
3. Can sniffing be a sign of anxiety in dogs?
Sometimes, yes. Dogs may sniff excessively to self-soothe when stressed or anxious.
4. How can I stop my dog from sniffing one spot obsessively?
Use commands to redirect, clean the spot thoroughly, and provide other mental stimulation.
5. Can dogs detect bugs or pests in walls?
Yes, dogs can smell rodents, insects, or mold that humans can’t detect.