10 smells that dogs do not like

The sense of smell in dogs is completely different from that of humans, so it is not surprising that we have different tastes when it comes to deciding which fragrances look nice to us and which we find to be unbearable. For us, the smell of urine and feces are part of the scents that cause us the most rejection, but for dogs they are odors that give them information of great interest to them.

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Many of the smells that dogs do not like are found in our house and we can even take them with us, causing our hairy companion uncomfortable in the nose and an unpleasant situation. If you want to meet them and find out which fragrances repudiate dogs, keep reading this article from YourCatCareguide and start taking action.

You might also be interested in: 10 scents cats hate

The smell of the dog

Olfaction is the most developed sense of dogs, having between 150 and 300 million olfactory cells , values ​​that compared to the 5 million cells that present the humans are exorbitant. In this way, they are able to identify each of the particles that are in the air or objects, and determine where exactly perceived smells are. For this reason, many dogs are used to search for missing persons during a catastrophe, detection of narcotic substances or even diagnosis of diseases such as cancer.

On the other hand, dogs are animals with a large olfactory memory . This means that, just as we are able to recognize a person by their image, the dogs recognize us through our scent. Therefore, it is crucial to let an unknown dog smell us before caressing it, or not hinder two dogs that smell between them.

When they have such a sensitive sense of smell, it is not surprising that dogs get excited every time they go out, because it is a whole world of smells that they perceive and want to discover. Also, we should not be surprised that they are resistant to certain aromas that are pleasant to us, since they perceive that smell more intensely. For you to know the smells that dogs hate, here’s a complete list.

Scent to citrus, horrible for dogs

The scent of citrus is one of the scents most appreciated by us, and its fragrance is capable of lasting hours in our house. So we have the habit of buying products that have this aroma and fill each of the rooms of the house with them in order to offer a smell that will last and give us a fresh feeling. However, for our furry companions is different, this being one of the smells that dogs do not like .

Remember that dogs have the sense of smell 40 times more developed than us. In this way, if the smell of citrus is already intense, imagine how your dog should perceive it. It is such a strong scent that it can cause irritation in the animal’s airways , causing an uncomfortable and unbearable sensation.

Citrus fruits such as lemon, orange or grapefruit have scents that dogs can not handle, but the fragrances they hate most are those of the essential oils of this type of fruit. Oils are concentrated products that emit a much more intense odor than the fruit itself and, therefore, the animal perceives a smell stronger than that of the food. So if you want to use a citrus scent to prevent your dog from urinating in a certain area of ​​the house, we recommend that you use the natural fruits and avoid putting the oils in reach. The objective of this technique is to prevent the animal from approaching this space in concrete, not to offer him an unpleasant coexistence.


Vinegar is another home remedy to keep dogs from urinating at home because it is also part of the smells they hate. As with citrus, the aroma of this product is so strong that it is unbearable for dogs . However, apple cider vinegar has great benefits for dogs , so depriving them to 100% of it is also not advisable. We must learn to use it and know how much to apply to make it as uncomfortable as possible for the animal.

Apple cider vinegar is quite effective to prevent the dog from smelling badly . However, since this is one of the odors that dogs do not like, we should mix it with your usual shampoo and thus reduce its fragrance. Do not apply this solution on the head area and be sure to rinse well.


Pepper is a food that owes its spicy to a number of natural chemical compounds called capsaicins , a composition that produces a very unpleasant smell for the puppies. Directly smelling this food can cause irritation of the respiratory tract, itchy nose, and constant sneezing. Therefore, it is imperative to know the forbidden foods for the dogs and prevent them from approaching them.

Alcohol in all its versions

The antiseptic alcohol is a smell that dogs do not support, so apply it on your skin is strongly discouraged. In the case of a wound, it is advisable to clean it with water only and consult the veterinarian to indicate how to disinfect it.

Depending on the degrees that alcohol contains, it will be more or less uncomfortable for the animal. However, this is not to say that alcohol used as an antibacterial gel is not one of the smells dogs hate, since their sensitive sense of smell is also capable of detecting it and determining that they do not like it.

On the other hand, alcoholic beverages are also unpleasant for dogs, especially those with a higher degree of alcohol.

Nail polish, unbearable for them

Although for many people the smell of nail polish is pleasant, dogs hate it. Composed of such a high number of chemical compounds, including formaldehyde, nitrocellulose, isopropyl alcohol and acetate, the fragrance of enamels is really unpleasant for dogs, causing sneezing and itching on the nose of their friend. four paws.

On the other hand, the enamel removers are also part of the list of scents that dogs do not like due to their chemical compounds, and acetone is the most uncomfortable for them. In this way, we recommend that you choose non-acetone enamel removers and apply all these cosmetic products away from dogs.

Chlorine, ammonia and other cleaning products

We like fresh, intense and fragrant smelling cleaners, and we end up buying them forgetting that our furry friends hate them. Both chlorine and ammonia are products that not only have strong odors that dogs hate, but are also highly harmful to them. Inhaling them directly can cause irritation to the respiratory tract and esophagus. In addition, ammonia produces a very similar aroma to the urine of dogs, so they can relate it to the presence of another animal at home and remain alert.

Although the products mentioned are the most uncomfortable for dogs, all strong-smelling cleansers, such as bleach, have unpleasant odors for them. Also, remember that they hate citrus scents, so all products with these fragrances will cause rejection in your furry companion. Try to clean the house while another family member takes the dog for a walk to avoid converting this task into an unpleasant experience for him.

Naphthalene balls

Naphthalene is generally used as a pesticide because of its degree of toxicity. Precisely the chemical compounds that make it to be such a toxic product, not only cause an unpleasant smell to the dog but also make it one of the things that can kill your dog . Ingestion of only one ball can cause severe damage to the liver and central nervous system of the animal, leading to vomiting, diarrhea, and seizures. Consuming more than one can lead to death.

Perfumes, without exception

Have you noticed that after putting on perfume, if you try to hug your dog, does he reject you? Your faithful companion hates scents of perfumes, without exception. In the case of products made with a multitude of chemical compounds, the aromas they give off are unbearable to them. However, the reason that perfumes become one of the smells that dogs hate is not just this, the same reason that leads us to worship perfumes to them causes them the opposite effect. In this way, just as we realize how pleasant the perfume brings a different smell to our skin, dogs do not like it because it acts as a substitute for our body scent. Remember that dogs recognize us by our scent, if we mask it with another different it is not surprising that they hate that nasty fragrance that prevents them from identifying us.

And the perfumes for dogs? Also they are scents that do not support. However, and whenever they are of quality, when they are products made for them are not harmful and we can apply them in moderation. This means that it is not recommended to perfum the animal every day, it will suffice the amount of perfume that the canine hairdresser apply to him during his visit to the beauty center.

Does your dog hate other smells?

As with humans, animals have their own taste, so it is possible that not all of the odors mentioned are unpleasant to him. This is not an exact science, and it may happen that one dog is able to withstand the scent of one orange while another hates completely. As far as citrus scents are concerned, the ones that animals usually hate are the essential oils of lemon, orange, grapefruit, etc., rather than the fruit itself. If you notice the scents that dogs do not support they are usually chemicals created by humans, rather than by natural elements such as food. So if your partner hates a scent that is not on this list, leave a comment and tell us everything!

If you would like to read more articles like 10 smells that dogs do not like , we recommend you to enter our section of Curiosities of the animal world .

Emily Harris

Hi Guys, Girls, and Cats:-p I am Emily Harris, and you can see in above pic. She loves me I swear. I saved her from a dumpster a few weeks back.

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