Last Updated on May 2, 2025 by Cat Mad
Cats hiss at each other as a defensive behaviour triggered by fear, pain, territorial disputes, or anxiety. It’s their way of saying “stay back.” This vocal warning helps avoid physical conflict. Understanding the context and causes can help owners ease tension through careful introductions, routine, and expert support if needed.
In This Article:
Understanding the Feline Hiss: What Does It Mean?
Hissing is a natural vocalisation cats use when they feel threatened, frightened, or uncomfortable. Unlike a growl or a meow, the hiss is designed to deter rather than invite confrontation. It’s a warning, a feline “back off” signal often used to avoid fights, not start them.
In multi-cat households, hissing often emerges during moments of tension, boundary testing, or unfamiliar introductions. While alarming to us, it’s a normal part of feline communication when used occasionally.
🐾 Common Reasons Cats Hiss at Each Other
| Cause | Explanation |
|---|---|
| Territorial Behaviour | Cats are naturally territorial. New pets or rearranged environments can trigger defensive hissing. |
| Fear or Anxiety | Sudden movements, unfamiliar scents, or loud noises can overwhelm a cat and lead to hissing. |
| Pain or Illness | A cat in discomfort may hiss when touched or approached, especially by other pets. |
| Poor Introductions | Introducing new cats without gradual desensitisation can cause stress and defensive reactions. |
How to Calm Hissing Between Cats
If your cats are regularly hissing at each other, here’s how to intervene effectively:
✅ 1. Introduce Cats Slowly
- Start with scent swapping using blankets or bedding.
- Feed them on opposite sides of a closed door.
- Use visual barriers (e.g. baby gates) before face-to-face introductions.
- Gradually increase interaction over several days or weeks.
✅ 2. Provide Multiple Resources
- Place litter trays, food bowls, and water stations in separate areas.
- Offer high perches or hideaways so cats can retreat when needed.
✅ 3. Stick to a Predictable Routine
Cats feel safer when they know what to expect. Feed, play, and clean litter at consistent times. Reducing unpredictability lowers stress levels.
✅ 4. Use Pheromones or Calming Aids
Products like Feliway Friends can help ease inter-cat tension. These synthetic pheromones mimic those used by mother cats to calm kittens. Studies from the University of Lincoln and others show reduced conflict behaviours when such products are used in shared spaces.
✅ 5. Observe for Medical Issues
If one cat suddenly starts hissing or becomes withdrawn, visit your vet. Pain, arthritis, dental disease, or neurological issues can cause irritability and uncharacteristic hissing.
When to Seek Expert Help
If:
- Hissing escalates to chasing or fighting
- One cat is hiding constantly or losing weight
- Conflict persists despite changes in environment
…it’s time to involve a feline behaviourist or veterinary professional. Chronic stress and unresolved tension can lead to long-term behavioural and health issues.
Find help: Association of Pet Behaviour Counsellors (APBC) lists certified UK specialists.
Final Thoughts: Respect the Hiss
A hiss is not “bad behaviour” – it’s a cat’s attempt to communicate discomfort. By understanding the cause, adjusting the environment, and managing introductions, we can reduce inter-cat stress and foster a more peaceful home.
FAQs
Is it normal for cats to hiss at new kittens?
Yes, especially if the resident cat feels unsure or territorial. Take introductions slowly and monitor interactions closely.
Should I separate cats if they hiss?
Temporarily, yes. Give them space and reintroduce them gradually using positive reinforcement.
Can cats live together peacefully after hissing episodes?
Absolutely. With patience, time, and proper socialisation, most cats adapt and form tolerant, even affectionate, bonds.