How do I remove dog urine odors from hardwood floors?

Enzyme cleaner will do it. Look for it in pet stores or pet departments in places like Wal-Mart.

There is a product called Icky poo that is also and enzyme cleaner.

An enzymatic cleaner like Nature's Miracle.

Sorry for chiming in a bit late to the discussion, but I really feel like I need to add my 2 cents.

I know how frustrating it must be for you if you have a dog that just won’t learn how to potty outside. You’ve probably tried all sorts of training techniques that you found online or in a book at the library and nothing worked. At least, that’s what happened to me...

Me and my hubby were able to find a solution and I’ll always be thankful that we did, because since then we have had no problem teaching my foster dogs where to potty – and I can do it within a couple of days.

I now recommend it to everyone because it works so freakin' well and we save SOO much money!

Don't waste time sister! The more times your dog goes to the bathroom inside your home the harder it will be to break him of this habit.

Take action now and permanently stop your dog from using the bathroom inside before it's too late!

Here's the guide we used that shows you how to completely potty train any dog or puppy quickly and easily in 7 days or less...

No I have not been paid for this post nor do I make any commissions off of it. I really just want to help you guys out. I hope you don't mind.

I'm based in Sweden, by the way, so you should be able to get it too.

Good luck with the odor and the stains! It really lowers your quality of life, doesn't it?