Some of the ingredients in betel nut can damage the taste nerve and saliva secretion, and long-term chewing in large quantities can affect digestive function. The medical profession believes that frequent betel nut chewing can seriously damage the teeth, causing oral ulcers, gum degeneration, submucosal fibrosis, which can lead to oral cancer, and is classified as a class I carcinogen, so it is not recommended to eat betel nut. If you accidentally swallow betel nut in your life, after the betel nut enters the human digestive system, the betel nut residue can stimulate the stomach wall, which can lead to acute lesions or even perforation of the gastric mucosa in serious cases, but there is very corrosive gastric acid in the stomach, which can corrode and digest the betel nut, which can be excreted with the stool through the intestines, and it is recommended to drink more water after swallowing betel nut by mistake to speed up blood circulation and gastrointestinal peristalsis to promote defecation, if there is poor breathing If there is poor breathing, vomiting blood, abdominal pain and other discomfort, it is recommended to go to the hospital in a timely manner.