get rid of it and shutting the lid on the toilet will reduce it. But if it is a constant smell you need to check the wax ring and make sure it doesn't need replaced. Because just a tiny little bit of leaking will make the whole room reek of urine. And you don't want it to saturate the floor or sub- flooring.

Cleaning bathrooms especially toilets you need to leave the cleanser in the toilet for at least 4 minutes to totally disaffect the toilet, then scrub rinse your brush off with the water in the toilet then spray the whole toilet down. Including the brush and set the brush under the lid so it will dry and wait a few minutes so the cleaner has time to work and disaffect. Wipe down with clean water and dry everything including the bottom and rim of the toilet. Turn the fan on in the bathroom also cuts back on smells a nice reminder might help... We went to Yellowstone they had restrooms everywhere. They had a note in each restroom to please close the lid on the toilet. Not one of those restrooms smelled. This might help. I have a professional cleaning business and have very seldom had problems with this unless the was leakage some place....or unless they are like my kids and I never see their restrooms until company is coming. : )