A tongue cleaner is not harmful to the tongue if used properly, but if used frequently it may damage the tongue papillae causing loss of taste or numbness of the tongue, so the frequency of use should be controlled. Tongue cleaner can remove the thick and greasy tongue moss on the tongue, which can improve the oral odor and prevent oral diseases, but if the tongue cleaner is used frequently, it will damage the tongue papilla on the surface of the tongue, which will lead to the occurrence of papillitis, which is mainly manifested as burning pain or numbness, and can affect the swallowing or speaking, so it is recommended to clean the tongue 1~2 times a week. As the tongue from the perspective of Chinese medicine can reflect the body’s stomach qi, and integrated pulse, tongue diagnosis and other comprehensive diagnosis, if you want to find Chinese medicine should avoid cleaning the tongue, so as not to affect the identification and treatment.