Numbness of the tongue may be the result of liver fire. There are more conditions that lead to numbness of the tongue, but Chinese medicine often believes that the smooth flow of blood or not can directly affect the tongue. Chinese medicine believes that the tongue is the seedling of the heart, so when there is a problem with the heart there is often a reaction on the tongue, and the heart has the role of dominating the blood in Chinese medicine theory. If there is not enough qi and blood to nourish the heart, problems with the heart will result in the blood vessels not being moistened, which will lead to numbness of the tongue. In addition to this, excessive use of herbs such as Radix Aconiti, Chuan Wu and Cao Wu can also cause the tip of the tongue to become numb. Liver fire refers to the exuberance of liver qi, which is manifested as inflammation of liver fire or hyperactivity of liver yang, and often results in redness or ulceration of the tip of the tongue, and in a few severe cases, may also lead to numbness. In addition, numbness at the tip of the tongue is often considered as nerve damage or cerebrovascular disease in Western medicine. Patients are usually advised to seek prompt medical attention, either from the Department of Traditional Chinese Medicine or the Department of Neurology, for targeted treatment after identifying the cause.