Why Do Cats Clean Each Other?

Updated: November 16, 2023


For those fortunate enough to share their lives with feline companions, the ritual of cat grooming is a familiar and endearing sight. It’s a daily occurrence for many cat owners, and if you happen to have a household with multiple furry residents, it becomes an ongoing spectacle of adorable interactions. The question that might have crossed your mind during one of these charming moments is: why do cats engage in such distinctive licking behaviors towards each other?

In this exploration, we delve into the intriguing world of feline social dynamics and delve into the reasons behind this seemingly simple yet profoundly meaningful act of mutual grooming among cats. So, let’s unravel the mystery behind those affectionate feline licks and gain a deeper understanding of the bonds that flourish within our whiskered companions’ intricate social lives.

Read also: Why Do Cats Stick Out Their Tongues?

Let’s Talk Grooming

Before we unveil the answer to the intriguing question, let’s delve into the realm of feline behavior from a scientific perspective. Contrary to our immediate assumption that grooming is a straightforward display of affection, it is, in fact, a complex phenomenon known to scientists as allogrooming.

This scientifically studied behavior extends beyond domestic cats; it is observed in various species, including lions, primates, and others, with humans exhibiting a variant approach. According to a 2016 study published in the Journal of Veterinary Behavior, allogrooming serves as a mechanism through which cats express cohesion within their colonies. This behavior is one of three methods employed by felines to foster a sense of unity, alongside the transmission of scent signals and a phenomenon known as allorubbing. Collectively, these tactics contribute to the creation of a cat “tribe,” highlighting the intricate social dynamics at play in their colonies.

It’s not necessarily reciprocated

Delving deeper into the inquiry of “Why do cats groom each other?” yields an intriguing observation from researchers. They noted that cats with closer bonds are more likely to engage in allogrooming, and the reciprocity of this behavior can vary. An illustrative example involves a female cat and her two adult offspring. Over several minutes, each cat took turns grooming the others, extending assistance in their bathing needs.

Understanding allogrooming dynamics among colony cats provides valuable insights into how we interact with our feline companions. The relationships formed among cats are mirrored in their interactions with humans. When we pet and scratch our cats’ heads and necks, we essentially engage in a form of grooming akin to their mutual grooming practices. Cats often display enjoyment when humans focus on these areas, aligning with their preference for these regions during allogrooming. However, researchers suggest that petting-induced aggression may arise when humans pet cats in areas that diverge from the typical allogrooming zones, shedding light on the complexities of feline-human interactions.

A Social Bond

So, what drives cats to engage in mutual grooming? Scientists have uncovered that allogrooming is a behavior exhibited primarily among cats within established colonies. Unfortunately for cats outside these social groups, the privilege of partaking in allogrooming is reserved for those already integrated into the colony. Once a new cat is assimilated, it gains access to this communal grooming practice.

In essence, cats adhere to social etiquette of grooming only those they know, mirroring a human reluctance to groom strangers unless in a professional setting like a spa or salon. However, the intricacies of this behavior go beyond mere familiarity.

During allogrooming sessions, the recipient cat displays remarkable cooperation, adjusting their head position to facilitate the grooming process. Purring becomes a prominent feature, indicating contentment. Cats even actively seek allogrooming by approaching another cat and presenting areas that are challenging for them to groom independently, such as the neck, top of the head, or back. This behavior underscores the social dynamics and practicalities that drive feline mutual grooming rituals.

Maternal Instinct

Maternal instinct plays a significant role in the phenomenon of allogrooming, particularly in the context of newborn kittens. As soon as kittens enter the world, their initial encounter is with their mother’s coarse tongue. This instinctual behavior stems from the crucial role mothers play in providing not only grooming but also overall care for their offspring. The act of allogrooming is a manifestation of a mother’s protective and affectionate instincts.

In the immediate aftermath of a kitten’s birth, the mother takes on the task of cleaning her newborn. This behavior is not only a display of nurturing but also serves a practical purpose—eliminating the scent associated with birth that could attract predators. Following this initial grooming, cats, in general, allocate nearly half of their time to grooming activities, both for themselves and their fellow feline companions. This ongoing grooming ritual underscores the enduring significance of maternal influence and care in shaping feline behavior.

Benefits of Mutual Grooming

The act of mutual grooming among cats encompasses several benefits for their overall well-being.

  • Physical Health: Mutual grooming serves as a practical measure to ward off parasites, contributing to the maintenance of cats’ physical health. Additionally, it aids in keeping their coats in optimal condition, ensuring a healthy and clean external environment.
  • Mental Health: Grooming exerts a calming influence on cats, acting as a therapeutic mechanism to help them cope with stress and anxiety. This aspect of grooming is integral to promoting their mental well-being, contributing to a sense of security and comfort.
  • Inter-cat Relationships: Allogrooming, or mutual grooming, assumes a pivotal role in the establishment and sustenance of social bonds among cats. By engaging in this communal grooming practice, cats foster a sense of unity and family within their group. This behavior reinforces social connections, contributing to a harmonious and cohesive feline community.

Not Always Reciprocated

Cats with a strong bond often partake in allogrooming, though this behavior doesn’t always follow a simple reciprocation pattern as one might assume. Hierarchy and the formation of grooming rings add fascinating nuances to this social behavior. In instances where multiple offspring are present, a grooming chain may form, with one cat grooming another while being groomed by a third.

Understanding allogrooming and the dynamics of cat colonies is crucial for cat owners for various reasons. The relationships among your feline companions influence their interactions with you. When you pet your cat or scratch its head, you’re essentially engaging in a form of grooming akin to what transpires within their colonies.

So, when your cat purrs with pleasure during a petting session, chances are you’re tending to areas that aren’t easily reached through allogrooming. Observing reactions when you pet one cat and another display discontent offers insights into the intricate social dynamics we’ll delve into below.

Mother Cats Groom Their Kittens

One of the earliest experiences in a newborn kitten’s life is maternal allogrooming. Right after birth, the mother cat diligently engages in cleaning her offspring, utilizing grooming not only to stimulate elimination but also to tidy up after her little ones.

As the kittens progress in their development and acquire the ability to eliminate independently, the maternal allogrooming behaviors persist. Arden, an expert in feline behavior, highlights that beyond hygiene, maternal allogrooming serves multifaceted purposes. It supports the bonding process between mother and kittens, provides a source of comfort, and acts as an educational tool to teach the young ones how to groom themselves. This nurturing behavior from the mother cat contributes to the holistic development and well-being of her kittens.

Social Acceptance and Connection

Research has illuminated the profound social dimensions of allogrooming, emphasizing its role in fostering social acceptance and connection among cats. Strikingly, cats reserve this behavior exclusively for familiar individuals, steering clear of grooming strangers or eliciting grooming from unfamiliar felines. However, the dynamics shift when interacting with humans. Consider those instances when your cat has leaped onto the lap of a stranger, presenting their neck or underbelly—a behavior distinct from their interactions with fellow cats.

Fundamentally, allogrooming is a learned behavior, instilled by mothers in the earliest stages of a kitten’s development. This grooming ritual becomes a lifelong practice, serving various purposes. While it can be a means of expressing dominance, its primary function is to solidify bonds within the feline social network of friends and family. Beyond its social significance, allogrooming also serves practical purposes, acknowledging that cats, despite their grooming efforts, cannot reach every nook and cranny, making communal grooming a valuable aspect of their overall care routine.

Higher Rank Plays a Role

An intriguing study conducted in the UK unveiled some noteworthy findings regarding feline allogrooming dynamics. Surprisingly, higher-ranking cats were observed allogrooming lower-ranking cats more frequently than in the reverse scenario. This revelation adds an interesting layer to our understanding of feline social hierarchies. Notably, the cats assuming the role of all groomers exhibited a more upright, straight posture, while those being groomed assumed a sitting or prostrate position, providing further insight into the dynamics at play.

In a fascinating twist, the study revealed that all groomers displayed a higher frequency of aggressive or offensive behavior compared to their allogroomee counterparts. Following the grooming session, the allogroomer would redirect attention to self-grooming rather than receiving reciprocation. This observation led researchers to posit that grooming could function as a form of aggression or a means of establishing dominance. Essentially, the act of grooming may serve as a non-confrontational way for a cat to assert dominance, choosing grooming over direct physical conflict.

Why Do Cats Groom and Then Fight?

An intriguing phenomenon that cat owners may have observed is the occasional sequence of grooming followed by what seems like a skirmish between feline companions. To comprehend this behavior, we can refer back to the understanding that cats groom each other as a bonding mechanism. This social grooming occurs when they are at ease in each other’s presence. However, within the dynamics of this bonding process, there are instances where the peaceful atmosphere takes an unexpected turn.

The post-grooming “fighting” is typically more playful than confrontational. It’s important to note that cats who genuinely dislike each other don’t engage in grooming, which implies that immediate aggression is unlikely. Instead, the ensuing interaction is often characterized by spirited and lively play, involving elements like kicking, rolling, and chasing. This behavior underscores the multifaceted nature of feline social interactions, where grooming can seamlessly transition into energetic play as part of their intricate social dynamics.

Sometimes Grooming Is Complex

Beyond instinct and bonding, cats engage in grooming for several other essential reasons, each contributing to their overall well-being. Grooming serves as a means of facilitating better breathing by keeping the fur clean and free of debris. Additionally, cats groom themselves after meals to tidy up, maintaining hygiene in their living environment. Temperature control is another crucial aspect, as grooming aids in regulating body temperature by redistributing oils and moisture across the coat.

Furthermore, cats utilize grooming as a form of relaxation or therapy, contributing to their mental and emotional balance. However, excessive grooming, particularly if rough and persistent, can be indicative of underlying emotional distress. Instances of environmental changes, such as introducing a new cat into the household, may trigger stress in established feline residents. In response to heightened anxiety, a cat might resort to excessive grooming or even fur-pulling as a coping mechanism. Recognizing these signs is vital for cat owners to address and alleviate potential sources of stress, promoting a harmonious living environment for their feline companions.

So, What Is That Playful Fighting?

Cats, much like humans, have their limits, and even with the trust established in their allogrooming, there comes a point when they may grow weary of the grooming session. In such cases, what may appear as fighting is, in fact, a way for the cat to express that the grooming has become tiresome. It’s worth noting that this behavior is quite distinct from human interactions; one wouldn’t resort to hitting their massage therapist when feeling overwhelmed.

While playful fighting or signaling discontent is common, there are instances where these interactions escalate to a more intense level. Signs such as hissing, squealing, and slapping may indicate a more serious disagreement. In such situations, it becomes crucial for the cat owner to intervene and restore peace.

Another factor that may contribute to post-grooming conflicts is the detection of illness or disease. In rare cases, a cat may notice a wound on the allogroomee, leading to a change in behavior. If such occurrences are noted, it’s essential to inspect the fur of the cat receiving grooming to ensure there are no underlying health issues that may be causing discomfort or distress. Vigilance in monitoring feline interactions can help maintain a harmonious environment and address potential concerns promptly.

A maternal instinct might be at play

An additional aspect to ponder in understanding “Why do cats groom each other?” revolves around the early stages of kittenhood. When kittens enter the world, their introduction is marked by their mother’s attentive tongue. This initial grooming is a vital aspect of their dependence on mothers for various needs, including bathing. The act of grooming from the mother serves a dual purpose, signifying both affection and a protective measure.

In the immediate aftermath of birth, queens diligently clean their newborns. This behavior is crucial as it helps eliminate the scent associated with birth, which could potentially attract predators. As kittens grow, by the age of 4 weeks, they develop the ability to groom themselves. A significant portion of their time, up to 50 percent, is dedicated to maintaining personal hygiene. This transition from maternal grooming to independent self-care marks a key developmental milestone in a kitten’s journey to self-sufficiency.

Can You Tell the Difference Between Play and Fighting?

Distinguishing between play fighting and real fighting in cats involves recognizing specific behavioral cues. Play fighting is characterized by activities such as rolling, kicking, grabbing, and chasing around the room. Importantly, there is no apparent discomfort, and very little anger is involved in this type of play. Playful interactions often come to an abrupt yet amicable halt, with cats easily returning to a state of peace and relaxation.

In contrast, real fighting is markedly different. It is aggressive, quick, and challenging to stop. Genuine altercations involve behaviors like chasing, tackling, and biting, accompanied by audible screams and squeals. A notable physical sign is the pulling back of cats’ ears towards their heads.

With time and familiarity, cat owners may find it easier to intervene and break up fights among their feline companions. For those seeking a deeper understanding of cat aggression, resources like The American Society for the Prevention of Cruelty to Animals (ASPCA) website offer valuable insights. Armed with knowledge about feline aggression, owners can effectively mitigate conflicts and maintain a harmonious living environment for their cats.

Why do cats clean each other?

Cats engage in mutual grooming for several reasons, primarily to strengthen social bonds within their group. It fosters a sense of community and belonging among them.

Is mutual grooming exclusive to related cats?

While grooming is common among related cats, it extends to unrelated cats within a social group. It’s a vital aspect of their social behavior, promoting harmony and cooperation.

What does mutual grooming involve?

Mutual grooming, or allogrooming, includes licking and nibbling. Cats use their tongues to clean each other’s fur, which also helps in removing loose hair and parasites.

Does grooming serve any other purpose?

Yes, grooming not only cleans the fur but also plays a role in distributing scent, contributing to the communal scent profile of the group. This shared scent helps identify members and reinforces social bonds.

Are there specific times when cats groom each other more?

Cats tend to groom each other during relaxed, non-threatening moments. It can be a sign of trust and affection, emphasizing their secure environment.

Can humans imitate cat grooming behaviors to strengthen bonds?

While humans can engage in gentle petting and grooming behaviors, replicating cat grooming precisely may not be practical. However, spending quality time with your cat through interactive play and positive interactions can strengthen your bond.

What if a cat refuses grooming from another cat?

Cats are individuals, and their preferences vary. Some may enjoy grooming sessions, while others may not. Respect their boundaries; forcing grooming may lead to stress or aggression.

Is excessive grooming a cause for concern?

Yes, excessive grooming or changes in grooming habits can signal underlying health issues or stress. If you notice any drastic changes, it’s advisable to consult with a veterinarian to rule out potential problems.


The intricate world of cats’ mutual grooming unveils a tapestry of social dynamics and emotional connections. Beyond the seemingly simple act of licking, this behavior serves as a cornerstone for building and maintaining strong bonds within feline communities. Whether related or unrelated, cats engage in grooming to foster a sense of unity, trust, and belonging. The shared act of cleaning not only keeps their fur in top condition but also plays a crucial role in the creation of a communal scent that identifies members of the group.

The significance of mutual grooming allows us to appreciate the depth of social interactions in the feline world. As cat owners, observing and respecting their grooming rituals enhances our connection with these enigmatic creatures. While each cat may have its preferences and boundaries, acknowledging the importance of grooming in their social framework contributes to a richer and more fulfilling relationship between humans and their whiskered companions.

Michael R

Michael R

I'm a publisher and editor at Cat Guide 101. I imagine that since you’re here, you likely own a cat — or two! — so helping you better understand them is my aim. I'd like to invite you to check out our about page to learn more about the Cat Guide 101 story.

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