How to get dog urine stains out of hardwood floors?

Chlorine bleach removes dye stains from wood and may remove urine stains -- use household bleach full strength, or mix a saturated solution of swimming pool bleach and water for a stronger chlorine solution. Rub the bleach into the wood, let it dry and and rinse with water. read more

For smaller or lighter pet urine stains, you may not need to refinish all of the flooring in the room. In this case, make sure to pour the peroxide only on the stain, check the progress of the peroxide every ten minutes, and wipe up the excess as soon as the stain has disappeared. read more

Urine, whether from humans or pets, can stain your wood floors. When the urine stain is old, ammonia in the urine causes discoloration and a lingering odor. The moisture in the wood, from the urine, can also lead to mold or mildew, turning the wood black. read more