1. Areca catechu contains carcinogenic alkaloids, leading to oral cancer. Now many people suffer from oral cancer because of betel nut.
2. Chewing betel nut for a long time will make people's teeth black. After chewing betel nut, the residue will vomit on the ground, which is red, like blood, affecting public health.
3. Because calcium and betel nut juice fill the mouth to form dental calculus, and because of long-term hard chewing, dentin is consumed, and even teeth are cracked or broken.
4. Oral submucosal fibrosis and leukoplakia caused by chewing betel nut, that is, the prophase lesion of oral cancer, its clinical symptoms are difficulty in opening mouth, pain, numbness, whitening of oral mucosa and ulcer.
Eating too much betel nut has a great influence on the digestive system. This is because the scale of betel nut juice pollutes the black lips and cheeks, which affects the appearance, damages the taste nerve and saliva secretion, hinders the digestive function, and betel nut residue stimulates the stomach wall, leading to inflammation and even perforation of the gastric mucosa, affecting nutrient absorption and causing malnutrition. Especially the child eat areca can easily lead to malnutrition.
6. Eating too much betel nut is harmful to human body. If pregnant women eat too much, it may lead to miscarriage.