Socialising a kitten: the window closes sooner than you think
The period in which a kitten learns that people, noises and change aren't dangerous is short and very early: much of it happens before the kitten reaches your home. That's why where it comes from matters so much. But what you do in its first months with you also counts for a lot, and it needs doing well.
The sensitive window: two to seven weeks
Kittens have a very early sensitive period for socialisation, roughly between two and seven or eight weeks of age. During that time their brain is especially open to accepting everything it meets as normal: people, other animals, noises, smells, handling. The classic studies on this stage found that kittens handled gently by several people during those weeks were later much more confident with humans than those that hadn't been. That means a large part of socialisation happens before the kitten reaches its permanent home, and depends on whoever raises it. Learning carries on afterwards, but more slowly.
Why where it comes from matters so much
A kitten that has spent its first weeks in a home, with its mother and littermates, hearing the vacuum cleaner and the television and being picked up lovingly by several people, has a huge advantage over one raised in isolation or on the street without human contact. So if you're going to adopt or buy, ask how it was raised: whether it was in a home, how many people it has had contact with, whether it knows other animals. Kittens born on the street to feral mothers can be socialised if they're rescued early, but the later it happens, the harder it is. Genetics play a part too: the father's temperament is partly passed on, and confident parents tend to have confident kittens.
What age to adopt
A kitten shouldn't be separated from its mother and littermates before eight weeks, and ideally between ten and twelve. In those weeks with its family it learns things no person can teach it: to judge the strength of its bites by playing with its littermates, to communicate with other cats, to use the litter tray by copying its mother, to calm itself down. Kittens separated too early tend to have more behaviour problems, such as hard bites during play, fearfulness or excessive dependence. If you find a very young kitten on the street, the situation is different, and it will need special care. Adopting two kittens together is also an excellent idea for their social development.
People: plenty of them, all kinds, all kind
In its first months with you, keep introducing it to people in a calm, positive way: men, women, children, people with glasses, caps or beards, people of different ages. The key is that every encounter is pleasant and that the kitten is always in control: able to approach if it wants and move away if it doesn't. Ask visitors to sit on the floor and offer a toy or a treat, rather than picking it up the moment they arrive. If there are children, teach them to stroke it gently, not to chase it and to respect it when it walks away. Quality matters more than quantity: one bad experience can outweigh ten good ones. Never force it.
Household noises and objects
Get it used gradually to the normal sounds of a home: the vacuum cleaner, the washing machine, the hairdryer, the doorbell, the television, pots and pans. Start with the noise at a distance and at low volume while it plays or eats something tasty, and move closer bit by bit over several days. If it gets scared, move it away from the noise and start again more gently. You can also use this time to introduce new objects: umbrellas, bags, boxes, a broom. A kitten that learns early on that strange noises and objects aren't dangerous will be a much calmer adult. You can use sound recordings, such as traffic, thunderstorms or fireworks, at very low volume and turn them up slowly.
Handling: paws, mouth and ears
This is the perfect time for it to get used to things you'll have to do all its life: trimming its claws, checking its teeth and ears, brushing it, giving it a tablet or eye drops. Do very short sessions when it's relaxed: touch a paw for a second and give a treat; then hold the paw a little longer; then press gently so a claw comes out. Do the same with the mouth, lifting its lip for a moment, and with the ears. Always with treats, always stopping before it gets uncomfortable. Do it well and you'll have an adult cat you can care for without drama, and vet visits will be much easier for everyone.
The carrier, the car and the vet
One of the most useful things you can teach a kitten is that the carrier is a nice place to be. Leave it open at home like another bed, with a blanket and a treat inside, so it can go in and out as it pleases. Take short car trips that don't end at the vet, and make a few vet visits just to say hello, get weighed and receive a treat, with no injections or examinations. Some cat-friendly clinics are happy to have these friendly visits. A cat that grows up unafraid of the carrier and the consulting room gets better veterinary care all its life, because its owners don't put off visits for fear of the drama.
Other animals
If there are other cats or a dog at home, the introduction should be gradual, even if the kitten is small. First let them smell each other through a door and by swapping blankets; then let them see each other through a barrier; and only after that let them be together under supervision, always with escape routes and high spots for the kitten. A calm dog that's used to cats can be a good companion, but you need to be sure it doesn't chase the kitten. If the kitten doesn't live with other animals, it can be useful for it to meet a friendly cat or dog you trust, calmly and under control. Always with vaccinations up to date and without forcing the encounters.
What not to do
Socialising doesn't mean exposing the kitten to everything at once. Taking it to crowded places, passing it from hand to hand at a family gathering or letting children chase it so it “gets used to it” can have the opposite effect and make it fearful. Nor should you force it out of a hiding place or make it accept a stroke it doesn't want. Playing with it using your hands will teach it that hands are prey, and punishing it for biting or scratching only teaches it to distrust you. The golden rule is that every new experience is positive or, at the very least, neutral, and that the kitten can retreat if it feels overwhelmed. Be patient: better to go slowly than too fast.
If it's already a fearful adult
If your cat is already an adult and wasn't well socialised, all is not lost. Many shy or fearful adult cats improve a great deal with patience, an environment with hiding places and high spots, predictable routines, plenty of play and an approach based on letting the cat stay in control. Progress will be slower than with a kitten and it may never be a lap cat, but it can come to live calmly and trust its family. If the fear is very intense and stops it living a normal life, see your vet, who may suggest the help of a specialist in clinical behaviour. And remember that not every cat has to be sociable with everyone.
A kitten's sensitive window runs from two to seven or eight weeks, which is why how it was raised matters so much: choose kittens raised in a home and adopt them at ten to twelve weeks. After that, keep introducing people, noises, handling, the carrier and other animals gradually, always with treats and without forcing anything.
Educational content from Michipedia, translated from the Spanish original. It does not replace the advice of a vet or a feline behaviour specialist. Every cat is an individual.