Why Do Cats Groom Each Other?

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Cats often groom each other during friendly social contact. This behavior, called allogrooming, can accompany a close relationship and may also help with cleaning fur around the head and neck.

To understand a particular grooming session, watch both cats. Choosing to settle together, accepting contact comfortably, and resting nearby afterward gives you a different picture from stiffening, pulling away, or being followed when trying to leave. A few licks alone cannot tell you everything about their relationship.

Why Cats Groom Each Other

Friendly Contact and Familiarity

Grooming is one of several ways cats interact with familiar companions. You may see it alongside rubbing against each other, touching noses, or sleeping with their bodies in contact. Cats Protection includes these behaviors among the signs that cats are getting along.

For example, one cat may settle beside another, receive a few licks around the forehead, and fall asleep. In that setting, grooming fits into a broader pattern of comfortable closeness.

Scent is also important in feline relationships. Rubbing and grooming can contribute to familiar group smells, as Cats Protection explains in its guide to how cats communicate with each other. That does not mean every licking session has a single purpose you can identify from the outside.

Help With Hard-to-Reach Fur

Cats can wash their faces using a dampened paw, but they cannot lick every part of their own head directly. A companion’s tongue can reach those areas.

A 2026 observational study of allogrooming found that licking often focused on the head and neck. The researchers proposed hygiene as one possible function, while noting that they had not measured whether grooming actually improved cleanliness. Helping with the coat is a plausible part of the explanation, rather than a proven reason for every session.

How to Tell Whether Both Cats Are Comfortable

Look beyond the cat doing the licking. The recipient’s response matters just as much.

Signs that fit a relaxed interaction include:

  • Both cats choosing to stay close, with loose bodies and ears in a neutral position.
  • The receiving cat leaning into contact or settling comfortably beside the other cat.
  • Natural pauses without either cat becoming tense or trying to restrain the other.
  • Either cat being able to change position or leave without being pursued.
  • Both cats returning to ordinary resting, exploring, or other activity afterward.

Watch for a change in that pattern. A cat may turn their ears back, stiffen, repeatedly turn away, or try to get up. Hissing, growling, defensive swatting, or an attempt to escape means the interaction needs more space.

Stillness alone is not proof of enjoyment. Look at whether the cat appears relaxed and has a usable way out. Our guide to cat body language explains how posture, ears, eyes, and movement work together.

The 2026 study found grooming in contexts of both affiliation and social tension. Its findings support watching what happens around the licking; they do not provide a test that diagnoses a relationship from one pose or one video.

Why Does Only One Cat Do the Grooming?

Grooming does not have to be exchanged lick for lick. In the study, many recorded sessions involved only one cat grooming the other. Those brief observations could not establish whether each pair always shared the same roles.

If one of your cats usually does the grooming, watch the recipient’s choices over several ordinary encounters. Do they approach, remain loose, and settle nearby? Or do they keep withdrawing while the other cat follows?

You cannot identify a household “boss” simply by counting who gives or receives more licks. FelineVMA’s guidance on intercat tension explains that cat relationships do not follow a rigid dominance hierarchy. Both cats’ comfort is more useful to assess than whether grooming looks evenly divided.

Why Grooming Can Turn Into Biting

Licking can be followed by play, a request to stop, or conflict. The next few moments help you understand which direction the interaction is taking.

Cats Protection describes play between cats as typically quiet, with pauses, gentle contact, and changes of role. Both cats should be able to disengage. A brief wrestle followed by calm separation is different from one cat trying to flee while the other keeps chasing.

If you see tension building, give the cats room to separate. When they are still calm enough to respond, you can call one away and offer an activity in another area. For managing separate play opportunities, see How to Play With Multiple Cats.

Do not punish warning signals or hold either cat in place to finish the grooming. If a fight starts, keep your hands out from between them and avoid picking up an aroused cat. Separate them safely and allow them to settle; repeated conflict needs professional guidance.

What If Your Cats Never Groom Each Other?

There is no need to make grooming a household goal. Some cats choose close companionship; others share a home while preferring more personal space.

Consider how each cat uses the home. Can both eat, rest, use the litter box, and move between rooms without being blocked or repeatedly displaced? Can they choose contact and distance? These everyday patterns matter even when you never see a shared grooming session.

Provide separate resting places and access to essential resources. Do not place cats together, restrain them, or put something on their fur to encourage licking.

If one cat is new, follow a gradual cat introduction. Seeing grooming once does not establish that the cats are ready for every kind of shared access, and its absence does not set a deadline for pushing them closer.

When Grooming Needs Attention

Arrange veterinary advice if grooming comes with:

  • Bald patches, irritated skin, sores, or another visible change in either cat’s coat.
  • Pain, injury, or a sudden marked change in how the cats respond to one another.
  • Repeated distress, hiding, pursuit, or difficulty reaching food, water, litter boxes, or resting places.

Skin damage deserves attention regardless of which cat is doing the licking. If the concern is a cat repeatedly licking their own body, Why Is My Cat Overgrooming? covers that separate problem. Cornell’s guidance on excessive licking explains why itchiness, pain, and other medical causes need consideration before assuming stress.

For recurring tension, your veterinarian can assess possible health contributors and recommend a qualified feline behavior professional. A short recording may help, provided you can capture it without provoking an encounter or delaying a needed intervention.

When both cats remain comfortable and free to leave, a grooming session can simply be part of their ordinary time together. Let their choices guide how much contact continues.

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