Why does my toilet smell of urine and how can I fix it?

The smell of urine in your toilet may be due to a buildup of bacteria or mineral deposits. To fix it, you can try cleaning the toilet thoroughly with a disinfectant cleaner, paying special attention to the areas around the rim and under the seat. You can also try using a toilet bowl cleaner specifically designed to eliminate odors. If the smell persists, it may be a sign of a more serious issue, such as a leak or a problem with the Plumbing, in which case you may need to contact a professional plumber for assistance.