Why Does My Cat Hiss At My Other Cat? [Causes & Remedy]

Cats are known for their independent and sometimes mysterious behavior, which can leave owners wondering about the motivations behind their feline companions’ actions. One such behavior that often puzzles cat owners is hissing, especially when directed at another cat in the household. Hissing is an instinctive response and a vocalization that signifies a wide range of emotions. Whether it’s a warning, a show of dominance, or a reaction to fear, a cat’s hiss can serve as a form of communication with other cats or even humans. Understanding why your cat hisses at another cat can help you address any potential conflicts in your household and ensure that your pets live together in harmony.

In this guide, we’ll explore the common reasons why a cat may hiss at another cat, how to assess the situation, and the steps you can take to respond appropriately as a cat owner. We’ll also discuss when it’s necessary to seek advice from a veterinarian if the behavior becomes problematic.

Why Does My Cat Hiss At My Other Cat?

Hissing is one of the most recognizable and distinctive sounds a cat can make. It’s usually accompanied by other signs of distress, such as raised fur, a stiff posture, or an intense stare. But why do cats hiss at one another? It’s important to understand that hissing is not necessarily an indication of malice, but rather an instinctual reaction meant to protect or establish boundaries. Hissing often occurs when a cat feels threatened, scared, or is trying to assert dominance or territorial control.

In multi-cat households, hissing is a common form of communication, especially if there are conflicts over territory or personal space. Cats, being solitary animals by nature, are very particular about their environment, and the introduction of a new feline or even the rearrangement of furniture can trigger tension. Cats are territorial and use hissing as a way to assert their authority or warn another cat to stay away.

Common Reasons For Hissing

1. Fear or Anxiety: When one cat feels threatened or frightened by another, the immediate instinct may be to hiss as a defensive response. This can happen when a new cat is introduced to the home or when one cat unexpectedly invades another cat’s personal space. Fear-driven hissing is more likely to be accompanied by other signs of anxiety such as dilated pupils, a hunched posture, or cowering.

2. Territorial Disputes: Cats are territorial creatures, and they may hiss to protect their territory from other cats. In households with multiple cats, one cat may feel that their space, food, or resting areas are being invaded, which can lead to aggressive behavior like hissing, growling, or even swatting. This type of hissing often happens when one cat tries to assert dominance over another or when one cat crosses into another’s perceived “safe zone.”

3. Resource Guarding: If a cat feels that another cat is encroaching on a prized resource—such as a favorite toy, food bowl, or litter box—they may hiss to warn the intruder to stay away. This behavior is rooted in the cat’s instinct to protect their resources, which are essential for their well-being and survival.

4. Frustration or Discomfort: A cat may hiss when they are frustrated or in pain, particularly if they are unable to escape from a situation. For example, if one cat is overly aggressive and doesn’t allow the other cat to retreat to a safe space, the hissing cat may feel trapped and lash out as a form of communication. Similarly, a cat who is unwell or experiencing discomfort may hiss at another cat as a means of signaling that they want to be left alone.

5. Social Hierarchy and Dominance: In some cases, hissing is a way for cats to establish or reinforce their position in the social hierarchy. Older cats or more dominant cats may hiss to keep younger or less dominant cats in line. This behavior can be more pronounced if the cats are unfamiliar with each other, such as when a new cat is introduced into the home or if there are large age or personality differences between the two cats.

When To Be Concerned

While hissing is a normal part of cat behavior, it’s important for cat owners to monitor the situation closely. In most cases, hissing is a temporary reaction to stress, fear, or territorial concerns, and it will subside once the situation is resolved. However, there are certain circumstances when hissing could be a sign of a deeper issue that requires attention:

1. Aggressive or Escalating Behavior: If the hissing is accompanied by growling, swatting, or aggressive lunging, it may indicate a more serious conflict between the cats. Persistent aggression can lead to injury, and the cats may become increasingly fearful or territorial, creating a toxic atmosphere in the household.

2. Health Concerns: If your cat’s hissing is accompanied by other signs of illness, such as a loss of appetite, lethargy, or difficulty moving, it could be a sign that something is physically wrong. Cats who are in pain or discomfort may lash out or hiss at other cats as a way to express their distress.

3. Chronic Stress: If your cats continue to hiss at each other over an extended period without resolution, it could indicate chronic stress. Prolonged anxiety can negatively affect a cat’s physical and mental health, leading to behavioral issues like inappropriate urination or over-grooming.

4. Inability to Coexist: If, despite efforts to intervene, your cats are unable to coexist peacefully and the hissing persists for weeks or months, it may be time to reassess their living arrangements. This could involve creating separate spaces for each cat or seeking professional behavioral guidance.

How To Respond As A Cat Owner

As a cat owner, it’s crucial to respond thoughtfully to hissing and try to resolve the underlying cause of the behavior. Here are some steps to consider:

1. Provide Safe Spaces: Ensure that each cat has their own space where they can retreat to feel safe. This includes separate resting areas, food bowls, and litter boxes. Providing personal space helps reduce territorial disputes and gives each cat a sense of security.

2. Gradual Introduction: If you’ve introduced a new cat to the household, allow time for a gradual introduction. Let the cats become accustomed to each other’s scent by swapping bedding or toys before face-to-face meetings. Start with short, supervised interactions, gradually increasing the time they spend together.

3. Reinforce Positive Behavior: Reward calm, non-aggressive interactions with treats, praise, or petting. Positive reinforcement can help encourage good behavior and reduce the likelihood of further conflict.

4. Minimize Stress: Avoid making sudden changes in your cats’ environment, as cats can be sensitive to new furniture, smells, or routines. If possible, keep things predictable to reduce stress levels.

5. Monitor and Intervene: If you notice an escalation of tension or aggression, intervene immediately to prevent physical confrontations. Redirect their attention with toys, separate them if necessary, and give them time to calm down.

When To Consult A Veterinarian

If your cat’s hissing is accompanied by signs of illness, such as changes in behavior, loss of appetite, or difficulty moving, it’s important to consult a veterinarian. A professional can rule out any underlying health issues that might be contributing to the aggression or discomfort. Additionally, if you’re struggling to resolve behavioral conflicts between your cats, a veterinarian may refer you to a feline behaviorist for more specific advice and techniques.

Conclusion

Hissing is a normal and natural behavior for cats, but it can sometimes be a sign of tension, fear, or discomfort between cats in a household. By understanding the common reasons behind this vocalization, you can take steps to alleviate the stress and conflict that might be causing it. Whether it’s managing territorial disputes, addressing health concerns, or providing your cats with the space and care they need, being an observant and responsive cat owner is key. Remember, if the hissing becomes excessive or aggressive, seeking advice from a veterinarian can help ensure that your cats live in a safe, peaceful, and healthy environment.

FAQs

What Does It Mean When My Cat Hisses At My Other Cat?

Hissing is a sign of fear, aggression, or territorial behavior in cats. It’s their way of warning the other cat to stay away. It can also occur when they feel threatened, are unsure about the other cat’s intentions, or are trying to establish dominance.

Is Hissing A Normal Behavior For Cats Living Together?

Yes, it’s quite normal for cats to hiss at each other, especially if they are still getting to know each other or have not yet fully established their social hierarchy. Cats use hissing as a form of communication to set boundaries and avoid conflict.

Can Hissing Be A Sign Of Jealousy Between Cats?

Yes, hissing can sometimes stem from jealousy, especially if one cat feels that the other is getting more attention from their human or is encroaching on their space. This is more likely if there’s a competition for resources, like food, toys, or attention.

How Can I Stop My Cats From Hissing At Each Other?

Gradual introductions and providing separate resources (like food bowls, litter boxes, and sleeping spots) can help reduce hissing. Positive reinforcement, such as treats and praise when they behave calmly around each other, can also help foster a peaceful relationship.

Why Does My Cat Hiss At My Other Cat When They’ve Been Together For A Long Time?

Even long-term companions can hiss at each other due to changes in their environment or routine, such as new furniture, new people, or a move. Cats may also hiss if they are feeling stressed, unwell, or if there’s a shift in their social dynamics.

What Should I Do If My Cat Hisses And Attacks The Other Cat?

If the hissing escalates into physical aggression, it’s important to intervene calmly. Separate the cats and allow them time to cool down. Consult with a veterinarian or animal behaviorist to address the aggression, as it may be rooted in fear, pain, or an unresolved conflict.

Can Medical Issues Cause A Cat To Hiss At Another Cat?

Yes, if a cat is in pain or feeling unwell, they may lash out at other cats. Conditions like arthritis, infections, or dental problems can cause discomfort, making them more irritable and likely to hiss. It’s important to rule out medical causes if the behavior seems out of the ordinary.

Why Does My Cat Hiss At My Other Cat But Not At Other Animals Or People?

Cats can direct their hissing at other cats because of territorial disputes or social dynamics. Unlike people or other animals, other cats are often seen as direct competition for resources like territory, food, and attention, which can lead to hissing.

How Do I Know If My Cat Is Hissing Out Of Fear Or Aggression?

Fear-based hissing is usually accompanied by other signs of anxiety, such as a crouched body, wide eyes, and flattened ears. Aggressive hissing may be paired with a more upright stance, dilated pupils, and a puffed-up tail. In both cases, it’s a sign that the cat wants space.

Is There A Way To Prevent Hissing Before It Happens?

Preventing hissing can be achieved by minimizing stressors and creating a calm, predictable environment. Introducing new cats slowly, maintaining consistent routines, and offering plenty of personal space can reduce the chances of hissing and improve the overall relationship between your cats.