Of all the many things you will teach your new Cairn Terrier to do in his lifetime, potty training should be the first and most important. The last thing anyone wants to continue dealing with is a dog who doesn't understand that the only place he is allowed to go potty is outside. One thing many new "puppy parents" tend to do is think they need to wait to begin potty training. On the contrary, you need to start working on this training from the moment you bring your new Cairn Terrier puppy home.
The task is in and of itself, relatively simple in nature. You want your new puppy to learn how to let you know he needs to go outside and that at no time is it ever acceptable for him to go potty in the house. Cairn Terriers are by nature very intelligent pups who tend to learn quickly. Providing you remain consistent in your training efforts, by the time your pup is six months old, he should no longer be making messes inside that you have to clean up.
There are only a few things you need to get started potty training your Cairn Terrier. You need to have a spot in your yard that your pup will use as his personal bathroom. One word here, be sure you keep this spot cleaned up or he may start going in other spots. The only real supplies you need are:
Beyond this, you need the time to work with your pup on a consistent basis and the patience to see it through until your pup no longer feels the need to go potty in the house.