Tongue scraping has the effect of cleaning the tongue, preventing oral diseases, preventing bad breath and many other effects, but scraping the tongue should be careful not to use too much force. Regular tongue scraping can play a clean tongue benefits, clean tongue can fresh breath, reduce the odor of the mouth. It also has the effect of preventing bad breath and many other effects. Tongue moss is more likely to harbor bacteria, through regular scraping of tongue moss to avoid bacterial growth on the tongue moss, can be very good to prevent oral diseases. If there is a lot of tongue coating, it can easily affect the sense of taste and lead to oral diseases. Often scraping the tongue can improve the sense of taste, promote salivary secretion to promote digestion and other effects. Tongue scraping to avoid too much force, too much force is easy to damage the tongue papillae lead to tongue numbness, loss of taste, loss of appetite and so on. Tongue scraping should not be done with a blunt instrument to avoid damage to the tongue.