Eating betel nut for a long time may increase the chance of developing oral cancer. Betel nut, also known as betel nut, is a class 1 carcinogen. Long-term consumption of betel nut may cause serious damage to the teeth, as well as gingival recession, submucosal fibrosis, etc. If not improved in time, it may also cause oral cancer. Of course, the cause of oral cancer is complex, and it is related to many factors, such as daily habits, environment and heredity, and can only be formed under the long-term effect of many factors. People who drink alcohol for a long time, smoke cigarettes, are infected with HPV16 and 18, and are often exposed to nuclear radiation have a higher chance of developing oral cancer than normal people. It is recommended that people maintain good living and eating habits, and keep the principle of proper consumption during the diet. If you experience discomfort after consuming food, you need to seek medical treatment promptly.