is cat saliva really clean? what makes it so special?

While cat saliva does contain antibacterial properties, it's not sterile. According to veterinary microbiologists, cat mouths harbor a variety of bacteria—some of which can be harmful to humans or other animals.

In fact, one of the most well-known bacteria in cat saliva is Pasteurella multocida. This is harmless to cats, but if a human gets scratched or bitten, it can cause infections.

So, while your cat’s saliva has healing traits for themselves, it’s not something we should treat as medically “clean” for us.

🛁 Why Cats Lick Themselves Clean

Cats are meticulous groomers. Their tongue is covered in tiny hook-shaped structures called papillae, made of keratin (the same thing your nails are made of). These hooks act like a natural comb, reaching deep into their fur to remove dirt, loose hair, and parasites.

Paired with their slightly antibacterial saliva, this system is incredibly effective. It’s why you’ll rarely see a cat looking dirty.

In fact, studies using slow-motion video and thermal cameras showed that a cat’s grooming system helps regulate body temperature and reduce the spread of scent—helping wild cats avoid predators.

🧴 Do Cats Use Saliva for Healing?

They sure think so. Cats instinctively lick wounds, and their saliva may offer some mild healing support thanks to its enzymes. But excessive licking can actually delay healing and cause infections. That’s why vets often prescribe Elizabethan collars (a.k.a. the cone of shame) to keep them from licking after surgery.

So yes, there’s some natural benefit, but it’s no magic medicine.

🧤 Can It Be Dangerous to Humans?

Let’s say your cat licks your face. Is it gross? A little. Is it dangerous? Usually not—unless you have a weakened immune system or the cat has a dental infection. That’s when bacteria like Pasteurella or Capnocytophaga can become risky.

Real-life case: A woman in the UK once got seriously ill after her cat licked a small cut on her hand. Rare, but it happens.

🐾 Fun Fact: Cats Use Saliva as Perfume

Yes, really. Cats don’t just lick to clean—they also spread their scent. Their saliva carries their unique chemical markers, helping them feel safe and secure in their environment.

So next time your cat grooms you, it might be their way of saying “you’re part of my crew.”

🐱 Final Thoughts

Cat saliva is fascinating, mildly antibacterial, and super effective for their personal hygiene—but it’s not a miracle cleanser or sterile substance. For cats, it’s perfect. For us? Maybe not so much.

So go ahead—let your cat groom away. Just maybe skip the kisses.