The best prevention for Urinary Tract Infection (UTI) is to make sure that the dog has enough water in their body to flush out what they need to and that they are given adequate opportunity to urinate throughout the day. It would also help prevent undue stress on the kidneys and other parts of the dog’s urinary system.

Crating the dog will train them not to urinate where they sleep and considered by most as an acceptable way of house breaking a dog. But you should also remember that you should not keep a dog in their crate longer than necessary. As a rule of thumb, a puppy can hold from urinating an hour for every month old, which means that if the puppy is only one month old, it will need to go out every hour, whereas if your pup is two months old, he will need to go every two hours.

However, you should not keep a dog crated for more than four hours at a time. Not only will this cause them to hold off in passing water, it will also cause a great deal of stress.

Another way to prevent UTI in dogs is to boost their immunity through proper diet. The source of protein for your dog is vitally important. If you are feeding your dog processed dog food, make sure that in the list of ingredients the first on the list is the actual type of meat (like beef, chicken, or lamb), and not linked with the word "digest" (for example beef digest) because that would mean that the source of protein is from the rendered down parts of the cow, and not the meaty part.

It will also help the dog to get a decent amount of exercise everyday and this will also give them the opportunity to "do their business" outside.

There are also many supplements and homeopathic remedies that can help with this, such as cranberries, yogurt, or many of the kidney health supplements available in any pet store. Be sure to consult a veterinarian before you try anything.

Last but not the least, keep the area in which your dog frequently stays clean. The bacteria that can cause UTI grow in unclean surfaces or wastes, waiting for an opportunity to get into your dog’s body and proliferate. The cheapest and most effective disinfectant would be to use chlorine-based bleach, and this also gets rid of other types of harmful microorganisms like the parvovirus.