The short answer. Ears turned out to the sides (often called airplane ears) usually mean your cat is uneasy or irritated. Ears pressed flat against the head mean strong fear, and a cat that wants distance. Ears swivelled back but still upright point to irritation or frustration more than fear. None of them means much alone: check the eyes, whiskers, posture and tail before you decide.
Three positions people mix up
| What you see | What it usually means | How good the evidence is |
|---|---|---|
| Turned out to the sides. Openings face sideways or down, ears wider apart and lowered toward horizontal, but not pressed to the skull. | Unease or irritation. With squinting or a hunched body, it is one of the facial signs linked with pain. | Strong |
| Swivelled back, still up. You can see part of the backs of the ears from the front. | Irritation or frustration, sometimes an assertive mood, rather than pure fear. | Moderate |
| Pressed flat. Ears lie backward against the skull, so the head looks round from the front. | Strong fear, or readiness to defend. This cat wants space. | Strong |
| Quick flicks or twitches while you are stroking them. | An early warning that they are getting irritated or uncomfortable. | Moderate |
For comparison, a cat at ease holds both ears upright with the openings facing forward. Ears pricked hard toward one spot mean attention, not worry.
Why one sign is never enough
Researchers who coded hundreds of cat facial signals found that many of them turn up in both friendly and unfriendly moments. So treat the ears as the first clue and look at four more places before you settle on a read.
- Eyes. Wide, round pupils in normal light mean high arousal. That can be fear, or excitement in play; the rest of the body tells you which. Squinting with tight eyelids alongside sideways ears is more worrying.
- Whiskers. Pinned back flat along the cheeks goes with fear and wanting to avoid contact.
- Posture. A low crouch with the weight shifted back means ready to run. A hunched sit with the head low and eyes closed, while awake, is a pain sign.
- Tail. Tucked under the body is a fear signal. A puffed tail with an arched back is fear or defence.
Sideways ears on a cat that is loose, blinking slowly and stretched out are probably just tracking a sound behind them. Sideways ears on a cat that is crouched, wide-eyed and still are a cat asking for room.
What to do when you see it
- Stop and give space. If you are stroking them, take your hand away. Flat ears in particular mean back off.
- Let them choose. In one study, letting the cat start and control contact led to more friendly behaviour and fewer conflict signs such as ear flattening and swatting.
- Look for the cause. A new animal, a visitor, a noise, the carrier coming out. Remove it if you can, or give them a way out.
- Offer somewhere to hide. A box or a high shelf lets a worried cat settle on their own terms.
- Do not punish. The ears are information. Telling a cat off for a warning teaches them to skip the warning.
When it is worth calling the vet
Cats hide discomfort well, and the face is one of the better places to catch it. Call your vet if sideways or lowered ears come with any of these, especially if it lasts more than a few hours:
- squinting or tightly closed eyes while awake
- sitting hunched, head low, not curling up to sleep
- hiding, or keeping away from people they normally seek out
- eating or drinking less, or trouble in the litter tray
- a head tilt that does not go away
A photo cannot diagnose anything. It can help you notice a pattern sooner and describe it clearly to the vet.
Common questions
What are airplane ears?
A nickname for ears rotated out to the sides and lowered so they look like wings. They signal unease or irritation, not anger as such. Some people use the name for flat ears too, which is why it helps to look at whether the ears are lowered sideways or pressed back against the head.
Why do my cat’s ears go back when I pet them?
Usually they have had enough. Ear flicks, ears turning back and a twitching tail during stroking are early signs of irritation. Stop, and let them come back to you when they want more.
Do sideways ears always mean something is wrong?
No. Ears move constantly to track sounds, and a relaxed cat can swing one or both ears sideways for a second. It matters when the position holds, and when the rest of the body agrees with it.
My cat’s ears are always folded or low. Is that a problem?
Some breeds, such as the Scottish Fold, have ears that fold forward permanently, so the ears tell you less. Read the eyes, whiskers, posture and tail instead.
Where this comes from
Each claim on this page is taken from the published research Cutie is built on. The main sources:
- Kessler, M. R., & Turner, D. C. (1997). Stress and adaptation of cats (Felis silvestris catus) housed singly, in pairs and in groups in boarding catteries. Animal Welfare, 6(3), 243-254. doi.org/10.1017/S0962728600019837
- Rodan, I., Dowgray, N., Carney, H. C., Carozza, E., Ellis, S. L. H., Heath, S., Niel, L., St Denis, K., & Taylor, S. (2022). 2022 AAFP/ISFM Cat Friendly Veterinary Interaction Guidelines: Approach and Handling Techniques. Journal of Feline Medicine and Surgery, 24(11), 1093-1132. doi.org/10.1177/1098612X221128760
- Evangelista, M. C., Watanabe, R., Leung, V. S. Y., Monteiro, B. P., O'Toole, E., Pang, D. S. J., & Steagall, P. V. (2019). Facial expressions of pain in cats: the development and validation of a Feline Grimace Scale. Scientific Reports, 9, 19128. doi.org/10.1038/s41598-019-55693-8
- Scott, L., & Florkiewicz, B. N. (2023). Feline faces: Unraveling the social function of domestic cat facial signals. Behavioural Processes, 213, 104959. doi.org/10.1016/j.beproc.2023.104959
- Haywood, C., Ripari, L., Puzzo, J., Foreman-Worsley, R., & Finka, L. R. (2021). Providing humans with practical, best practice handling guidelines during human-cat interactions increases cats' affiliative behaviour and reduces aggression and signs of conflict. Frontiers in Veterinary Science, 8, 714143. doi.org/10.3389/fvets.2021.714143
- Bennett, V., Gourkow, N., & Mills, D. S. (2017). Facial correlates of emotional behaviour in the domestic cat (Felis catus). Behavioural Processes, 141(Pt 3), 342-350. doi.org/10.1016/j.beproc.2017.03.011
See all five places a cat tells you things on the field guide to cat body language.
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