cat behavior problems

The most common cat behavior problems are fighting with other cats, aggression toward people, scratching furniture, litter box accidents, excessive meowing, senior-cat changes and urine marking. Most have a cause you can fix: stress, boredom, not enough resources, or a medical problem. Rule out illness with your vet first, then change the environment and reward the behavior you want. Key Takeaways Sudden changes in litter habits, aggression or vocalizing can signal illness. See your vet first. Never punish a cat. It increases fear and makes problems worse. Give each cat resources: one litter box per cat plus one, multiple water and feeding spots, and perches. Give outlets: scratching posts, daily play and vertical space. Use positive reinforcement: reward calm, wanted behavior. This article is general information, not veterinary advice. It contains affiliate links. We may earn a commission if you buy through them, at no extra cost to you. See our Disclosure. Quick Guide: Problem, Cause, Fix Problem Common causes Best first step Fighting between cats Competition for space and resources, new cat More resources, slow reintroduction Aggression toward people Fear, pain, overstimulation, redirected arousal Vet check, avoid triggers, give space Scratching furniture Natural instinct, marking, stretching Good scratching posts near favorite spots Litter box problems Medical issues, dirty box, stress Vet visit, clean boxes, add more boxes Excess meowing Attention, hunger, boredom, illness Check health, routine and play Senior behavior changes Pain, cognitive decline, poor senses Vet exam, easy access, routine Urine marking Territory, stress, unneutered Neuter or spay, clean thoroughly, reduce stress Behavior is communication. Look for the reason behind it. 1. Fighting Between Cats in the Home Causes: competition for beds, food, litter boxes or favorite spots, or a new cat upsetting the balance. Add resources: separate food, water, litter boxes and resting places so no cat has to compete. Introduce slowly: keep a new cat in a separate room first, swap scents, then allow supervised visits. Give high spots and hiding places so cats can avoid each other. Consider pheromone diffusers as a support tool, along with the steps above. 2. Aggression Toward People Causes: fear, pain, overstimulation during petting, or redirected aggression, such as a cat who sees another cat outside. See your vet to rule out pain or illness. Learn your cat’s warning signs: flattened ears, twitching tail, dilated pupils. Stop play or petting before your cat gets overstimulated. Do not use hands as toys. Give a cooling-off period and never punish or chase. Use wand toys for play so your cat can hunt something other than you. More options in our guide to best cat toys for bored cats. 3. Destructive Scratching Causes: scratching is normal. It stretches muscles, maintains claws and leaves scent and visual marks. Offer tall, sturdy posts and horizontal scratchers in different textures. Place them where your cat already scratches, near sleeping areas and room entrances. Reward use with treats or play. Cover the furniture spot with double-sided tape or a throw. Trim claws regularly. Avoid declawing, which is painful and can cause long-term problems. 4. Litter Box Problems Causes: urinary tract infections, bladder stones or digestive problems, a dirty or small box, an awkward location, or stress. Vet first: straining, frequent trips or crying in the box can be an emergency, especially in male cats. Scoop daily and wash the box regularly. Provide one box per cat plus one, in quiet, easy-to-reach places. Choose large, uncovered boxes if your cat dislikes closed ones, and test different litters. 5. Meowing and Yowling Causes: hunger, thirst, boredom, attention seeking, stress, or medical issues such as hyperthyroidism or cognitive changes in older cats. Check food, water and the litter box. Add daily play and climbing structures. Do not reward demand-meowing. Reward quiet. See your vet if vocalizing is new or increases. Read about hyperthyroidism in cats. 6. Behavior Changes in Older Cats Causes: arthritis pain, cognitive dysfunction, and reduced vision or hearing. Book a vet exam. Pain and cognitive decline can be managed. Use low-sided litter boxes and easy-access beds. Keep a steady routine and add night lights. Ask about pain relief, supplements or other treatment. 7. Urine Marking Causes: territory, stress, a new pet or move, and hormones in unneutered cats. Spay or neuter your cat. This reduces marking in most cats. Clean with an enzymatic cleaner so the scent is removed. Do not use ammonia-based cleaners. Add vertical space and separate resources in multi-cat homes. Keep routines steady and use calming aids if recommended by your vet. Prevention Tips for a Calmer Cat Enrich the home: toys, climbing trees, window perches and daily play. Safe spaces: quiet hiding spots for stressful times. Regular vet visits: see our guide to annual wellness exams. Learn body language: ears, tail, eyes and posture tell you how your cat feels. Reward good behavior: treats, play and praise. New cat at home? Read how to adopt a cat in the USA, and browse our pet shop. Frequently Asked Questions Why is my cat suddenly aggressive? Sudden aggression often means pain, illness or fear. Visit your vet before treating it as a behavior problem. Why is my cat peeing outside the litter box? Medical issues are common, as are dirty boxes, stress and not enough boxes. Get a vet check first, then adjust the litter setup. How do I stop my cat scratching the sofa? Put a sturdy scratching post next to the sofa, reward its use and make the sofa less appealing with tape or covers. Should I punish my cat for bad behavior? No. Punishment causes fear and stress and can make problems worse. Redirect to an alternative and reward the right behavior. Sources ASPCA: Common Cat Behavior Issues Humane Society: Cat Behavior Last reviewed: November 2026. If your cat is straining to urinate, has blood in urine, or shows sudden severe changes, contact a vet immediately.