Stop a Neutered Dog From Marking His Territory

The first step is to remove the scent of urine. Even if you can't smell it, you can bet that the dog can. Using an enzymatic odor remover such as Nature's Miracle is the fastest way to remove the odor. In many cases, simply removing the reminder to mark (i.e. the urine scent) will solve the problem.

The next step is to remove the opportunity. If the dog is marking in a particular room, don't let the dog have access to that room. Baby gates work extremely well for this for most dogs, and can be picked up cheaply at many stores.

The next step is consistent training. Make sure you and every other member of your household is being consistent with the dog, to avoid confusion and cement in the training. Every time the dog lifts his leg to mark inside the house, deliver a stern, "NO" and immediately take the dog outside to use the bathroom. This will reinforce house training.

In extreme cases, the use of a remote shock collar can be beneficial to those stubborn dogs who resist consistent training. Simply keep and eye on the dog, and press the remote button whenever the dog cocks his leg to mark inside the house.