Bacteria on the tongue is extremely sticky. Debris, bacteria, and dead cells can build up on your tongue over time. If it isn't removed, your tongue may start to develop a discoloured appearance and look hairy. This can lead to bad breath and harm your overall oral health. Removing that debris from your tongue before bedtime can also help reduce bad morning breath and get rid of it when you wake up.
A condition is known as oral thrush (or yeast infection) can develop when the bacteria in the mouth are left to multiple. The best way to reduce the number of bacteria in your mouth is to clean your tongue twice daily after you brush your teeth. Using a tongue scraper can help remove this buildup. Whether it's to fight bad breath or just for good dental health, cleaning your tongue is important.