how old does a kitten have to be before it can go outside
It is best not to leave your kitten outside alone until it is 6 months old and it is essential that it is neutered (from 4 months of age) before allowing it unsupervised access. If you have adopted an adult cat you probably will have been advised to keep it in for 2-3 weeks to settle into its new home.ecause of potential infection with diseases such as enteritis or cat flu, your kitten should not be allowed outside until at least a week after it has finished its first course of vaccinations at about 13-14 weeks old (depending on the vaccine). You could then let it explore outside if it is supervised.