China’s betel nut is mainly produced in Hainan, Guangdong, Yunnan and other places, the southern friends may be more familiar with betel nut. Generally speaking, most people’s knowledge of betel nut is limited to it being a snack, but, did you know? Betel nut is also a traditional Chinese medicine. The betel nut, bitter, pungent and warm in nature, has the efficacy of driving away worms, eliminating stagnation, lowering gas, moving water, reducing swelling and intercepting malaria, and is used in traditional Chinese medicine tonics to treat wormy noma, food stagnation, bloating and pain in the abdomen, diarrhea and dysentery, constipation and so on. The betel nut as a snack, usually often chewed, chewing betel nut, people usually cheeks red, mental excitement, body slightly sweating, which can also drive away the cold, so many friends have the habit of chewing betel nut. As a traditional Chinese medicine betel nut can be said to be a lot of benefits. But we know that betel nut will eat more like smoking, drinking will be addicted, so betel nut will eat more than what? The answer is: too much is not enough. A few days ago, I saw such a patient in the clinic, when the patient had difficulty speaking, his mouth could not be opened wide, in the words of the patient “only open two fingers”. The patient’s family told him about his habits: he likes to chew betel nut, and he keeps chewing it every day, and when he is thirsty, he only drinks drinks, not water, and he is also a heavy smoker. Therefore, mouth ulcers appeared repeatedly. Today, he was diagnosed with “bilateral buccal mucosal amyloidosis” by the Department of Stomatology of our hospital, and there is no good treatment in western medicine, so he came to the Department of Traditional Chinese Medicine. The patient had difficulty in opening his mouth and could not eat a little spicy food. Both sides of his oral mucosa were white and hard, and his tongue was yellow and thick. Excessive chewing betel nut, light addiction, heavy symptoms of this patient, and then heavy will lead to oral cancer, throat cancer, etc.!