Indoor Cat Behaviour Problems: Solving Common House Cat Issues

How Should You Scratch Furniture: Redirecting a Natural Behaviour?

Scratching is not destructive behaviour: it is a biological necessity for cats. They scratch to maintain their claws (removing the outer sheath), stretch their muscles, mark territory (via scent glands in their paws), and relieve stress. Punishing scratching is counterproductive because it does not address the need, only the location. The solution is providing more attractive alternatives and making the furniture less appealing.

Place scratching posts directly next to the furniture your cat currently targets. Cats scratch in specific locations for territorial reasons, so the alternative must be in the same spot. Use a post that matches your cat’s preferred scratching orientation (vertical scratchers for cats that claw sofa arms, horizontal scratchers for carpet-scratchers) and material (sisal rope for most cats, cardboard for others). The post must be tall enough for a full stretch (minimum 80 cm for vertical scratching) and stable enough not to wobble.

Make the targeted furniture temporarily less appealing by covering it with double-sided tape (cats dislike the sticky sensation), aluminium foil, or plastic sheeting. Apply Feliway spray to the furniture (reduces the urge to scent-mark) and sprinkle catnip on the scratching post to attract your cat toward it. Once your cat is consistently using the post (typically 2-4 weeks), gradually remove the deterrents from the furniture. See our indoor cat behaviour guide for detailed furniture protection strategies.

What Are the Nighttime Hyperactivity and Early Morning Wake-Ups?

Nighttime racing, 4am wake-up calls, and midnight vocalisation are among the most disruptive indoor cat behaviour problems. These behaviours are almost always caused by unmet energy needs during the day. An indoor cat that has not had adequate play and stimulation accumulates energy that must be released, and the quiet nighttime hours provide the opportunity.

The most effective solution is the hunt-eat-groom-sleep routine in the evening. At around 8-9pm, engage your cat in a vigorous play session of 20-30 minutes using interactive wand toys. Make the play session build in intensity, then wind down gradually, ending with your cat catching the toy. Immediately after play, feed the evening meal. This sequence satisfies the hunting instinct, provides a food reward, and triggers the natural post-feeding grooming and sleep cycle.

If your cat wakes you in the early morning demanding food, do not feed them when they wake you. This reinforces the behaviour. Instead, use a timed automatic feeder set to dispense a small meal at the time your cat typically wakes you. The cat learns to associate food with the feeder rather than with waking you. Within 1-2 weeks, most cats redirect their attention from the owner to the feeder. For more structured activity planning, see our indoor cat exercise routines guide.

What Is the Litter Tray Avoidance?

When a cat that previously used the litter tray reliably starts eliminating elsewhere, always consult your vet first. Up to 60 percent of litter tray avoidance cases have an underlying medical cause, most commonly feline lower urinary tract disease (FLUTD), urinary tract infections, kidney disease, or gastrointestinal issues. Pain associated with urination or defecation causes the cat to associate the tray with discomfort and avoid it.

If medical causes are ruled out, the issue is typically environmental. The most common causes of behavioural litter tray avoidance are: the tray is too dirty (cats prefer a clean tray scooped at least once daily), the litter type has changed (cats dislike sudden changes), the tray location is stressful (too close to food, too noisy, no escape route, blocked by another cat), the tray is too small (it should be 1.5 times your cat’s body length), or there are too few trays for the number of cats.

To resolve litter tray avoidance, address all potential environmental factors simultaneously. Add an additional tray in a new, quiet location. Try an unscented, fine-grain clumping litter (the texture most cats prefer). Ensure the tray is scooped twice daily and fully cleaned weekly. If the avoidance is linked to inter-cat tension, place trays in multiple rooms so no cat can block access. Our cat hygiene guide covers complete litter tray setup and maintenance.

What Are the Aggression Toward People and Other Cats?

Aggression in indoor cats takes several forms: play aggression (ambushing ankles, biting during petting), fear aggression (hissing and swatting when cornered or startled), redirected aggression (attacking after being aroused by an outdoor cat or loud noise), and inter-cat aggression (conflict between household cats). Each type has different triggers and requires different management.

Play aggression is most common in single indoor cats, particularly those adopted young without littermates to teach bite inhibition. The solution is never playing with your hands or feet (this teaches them that human body parts are toys), providing abundant play opportunities with appropriate toys, and immediately ending all interaction when biting occurs. Walk away silently. Do not shout, spray, or physically reprimand, as this creates fear and escalates aggression.

Inter-cat aggression in multi-cat households often stems from insufficient territory and resources. Before addressing the aggression directly, increase resource availability: more litter trays, separate feeding stations, additional vertical space, and multiple resting spots. If aggression involves physical attacks or is escalating, temporarily separate the cats and reintroduce gradually with positive associations. For persistent or severe aggression, consult an ABTC-registered behaviourist. See our multi-pet household guide for detailed multi-cat conflict resolution.

What Is the Excessive Vocalisation and Attention-Seeking?

Indoor cats that meow excessively, follow their owner constantly, or become distressed when left alone may be suffering from insufficient stimulation, separation anxiety, or learned attention-seeking behaviour. The first step is determining which category the behaviour falls into, as each requires a different approach.

Learned attention-seeking occurs when a cat discovers that meowing, jumping on surfaces, or knocking items off tables reliably produces a response from the owner. Even negative attention (shouting, picking the cat up to move them) is still attention and reinforces the behaviour. The solution is to completely ignore the unwanted behaviour while simultaneously providing attention and engagement on your terms. Increase scheduled play sessions and respond enthusiastically when your cat displays calm, desired behaviours.

If excessive vocalisation is new, sudden, or persistent, particularly in an older cat, consult your vet. Increased vocalisation is a common symptom of hyperthyroidism (very common in older cats), cognitive decline, pain, and sensory loss (deafness). Medical causes must be identified and treated alongside any behavioural management. For cats with genuine separation anxiety, a structured independence-building programme (gradually increasing the duration they are left alone, starting from seconds and building up) can help, often alongside Feliway and environmental enrichment. See our indoor cat health monitoring guide for tracking behavioural changes over time.