Some people would agree that is really cute when the big, wet and slobbery tongue of their dog is trying to lick their face.

But we have bad news: there is something much sinister about it.

Even though your dog genuinely is trying to display affection to you, on its tongue there are various types of bacteria that may be harmful to your health.

And if you are asking if the dog mouths are cleaner than the human mouths, we will answer that question. That is total myth.

Marty Becker is author of ‘Chicken Soup for the Dog Owner’s Soul, and there he explains that quite well. Namely, he says: “All you have to do is look, watch, smell and you’ll realize that is not true. They raid the garbage can. You know, we give each other a peck on the cheek when we say hello, they give each other a peck on the rear end.”

In addition to this, professor of virology and bacteriology at the Queen Mary University in London, John Oxford, expanded this explanation about how much bacteria the dog’s muzzle and mouth is able to carry.

He says: “It is not just what is carried in saliva. Dogs spend half their life with their noses in nasty corners or hovering over dog droppings so their muzzles are full of bacteria, viruses and germs of all sorts.”

It is important to explain that these viruses and germs can cause medical conditions that are really hazardous to human health. One woman from U.K. learned that on hard way.

To be more precise, this woman contracted an infection from her Italian greyhound’s saliva. She actually didn’t realize that something is wrong until she was speaking on the phone with a relative and began to notice her speech slurring.

Until the ambulance arrived, she already was slumped in her chair, as her health was degrading rapidly. After two weeks of intensive care and plenty of antibiotics she recovered and now she is feeling good.

The blood tests showed that this infection is caused by capnocytophaga canimorsus bacteria, which most commonly is found in the mouths of dogs and cats.

Unfortunately, she is not the only case – there have been 13 similar cases throughout the UK.

However, that is not the only disease that your dog can pass onto you through kisses.

Ringworm infection

The ringworm infection probably is one of the easiest diseases that your dog can pass onto you from smooching. In case if there is ringworm bacteria around your dog’s mouth and you engage in kissing – there will be ringworm for you too.


MRSA is infection which produce lesions and at humans easily can be caused by one lick from the dog.

Vets explain that dogs can carry around this bacteria with very little effect or without any effect on their own health. Still, if the owner comes into contact with it the situation is much complicated.

Staphylococcus Aureus

The staphylococcus aureus is very similar to MRSA. This similar bacteria, which can be found in dog’s mouth is not as resistant to treatment.

Capnocytophaga Canimorsus

This certainly is the worst bacteria. If you ask: how bad? Well, you can find the answer below.

This man was had capnocytophaga canimorsus infection which, according to his doctor, was caused by a dog licking his open wound. Unfortunately, his feet were even worse, and one had to be partially amputated.

Therefore, after all these examples, our advice is to avoid all kisses from your dog.