Have you ever caught your cat licking another cat’s bum and wondered why? This peculiar behavior may seem strange to us humans, but it is a common habit among felines. In our latest article, we delve into the curious world of cats and explore the reasons behind their bum-licking behavior. From social grooming to scent marking, there are various explanations for this seemingly odd behavior. So, if you’re curious about why your cat engages in this activity, read on to discover the fascinating truth.

Why Does My Cat Lick My Other Cat’s Bum?

If you’re a cat owner, you may have witnessed your feline friends engaging in a rather curious behavior – licking each other’s bums. While this may seem strange and even a bit gross to us humans, this behavior is actually quite common among cats. But why do cats do this? Is there a specific reason behind it or is it just one of those quirky things that cats do? In this article, we will explore the reasons behind this behavior and shed some light on this peculiar aspect of feline behavior.

Understanding feline grooming behavior

Cats are known for their cleanliness and grooming habits. They spend a significant amount of time each day grooming themselves, using their rough tongues to clean their fur and remove any debris or dirt. This grooming behavior is not only for hygiene purposes but also serves as a way for cats to regulate their body temperature and distribute natural oils on their coats, keeping it healthy and shiny.

However, when it comes to grooming other cats, the reasons may not be the same. Licking another cat’s bum is not considered a regular part of grooming, and there are several possible explanations behind this behavior.

Social bonding and comfort

One of the main reasons why cats lick each other’s bums is to strengthen social bonds between them. Cats are social animals and form close relationships with each other, especially if they have grown up together. Grooming each other is a way for cats to show affection and create a sense of trust and comfort within their group. This behavior is more commonly seen among cats that share the same living space and have a close bond.

It’s also worth noting that cats have scent glands located in their mouths, which they use to mark their territory. By grooming another cat, they are spreading their unique scent on them, further reinforcing their bond and sense of belonging within a group.

Motherly instincts

If you have a litter of kittens, you may have noticed the mother cat grooming them, including their bums. This behavior is an instinctual way for the mother to keep her kittens clean and free from any potential infections. Kittens also lick their mother’s bum as a way to stimulate her to pass urine and feces, as they cannot do it on their own at such a young age.

This maternal behavior is also seen in adult cats, especially females, who may groom other cats, including their bums, as a nurturing gesture. This behavior can also be observed in male cats, who may groom other cats in their household, showing that it is not solely a maternal instinct.

Hierarchical behavior

Cats are notorious for their independent and territorial nature. They establish a hierarchy within their living group, deciding which cat is the dominant one and who occupies a lower rank. Grooming another cat, including their bum, is a way for a dominant cat to assert their rank and show their superiority over the others.

In addition, submissive cats may groom the dominant cat as a way to appease them and avoid conflict. This behavior can also occur if there is a new cat introduced to the household, and the cats are trying to establish their hierarchy and boundaries.

Medical reasons

Sometimes, excessive licking of another cat’s bum may be due to underlying medical conditions. Cats are prone to developing anal gland problems, which can cause discomfort and itching in the area. This can lead to a cat constantly licking or biting at their bum, and other cats may try to help by grooming the affected cat.

If you notice that one of your cats is excessively grooming another cat’s bum, it’s always best to consult with a veterinarian to rule out any potential medical issues.

When is it a cause for concern?

While cats grooming each other’s bums is a common and generally harmless behavior, there are some instances where it may be a cause for concern. If you notice any of the following behaviors, it’s best to seek advice from a veterinarian:

  • Excessive licking or biting at the bum area
  • Bleeding or irritation in the bum area
  • Inability to pass feces or urine
  • Strange smells or discharge in the anal area

These could be signs of an underlying medical issue or an infection that requires treatment.


Cats grooming each other’s bums may seem like a strange behavior, but it is a natural and normal part of their social and grooming habits. From strengthening bonds to asserting dominance, there are several reasons why cats engage in this behavior. However, as a responsible pet owner, it’s essential to monitor this behavior and seek veterinary advice if you have any concerns about your cats’ well-being.

We hope this article has given you a better understanding of why cats lick each other’s bums and helped you appreciate the fascinating aspects of feline behavior.

In conclusion, the behavior of cats licking each other’s bums may seem strange and even a bit disgusting to us humans, but it is actually a common and important habit among felines. As social creatures, cats use grooming as a way to bond and show affection towards one another. This behavior also serves practical purposes such as maintaining hygiene and keeping their scent consistent within a group. So the next time you catch your cat licking another cat’s bum, remember that it is just their way of showing love and taking care of each other. And maybe we can all learn a thing or two about the power of grooming in building strong relationships from our feline friends.

By Kitty Smith

I am a Ohio living blogger with a penchant for all things pretty. You can typically find me roaming around my neighborhood of Long Island with latte in my hand and with an iPhone raised above my head to capture the majesty of it all. I mostly post fashion content to Kitty's Lifestyle and I also post recipes on my cooking blog Kitty's Kitchen Recipes.

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