Smoking is very harmful to human health, and it is a well-known fact that smoking can cause lung cancer. Did you know? Smoking also hurts your stomach. Cigarettes contain nicotine, which can stimulate the gastric mucosa, causing submucosal vasoconstriction and spasm, resulting in gastric mucosa ischemia and hypoxia, thus playing a role in the destruction of the gastric mucosa. Nicotine also relaxes the pyloric sphincter and dysfunction of the stomach, causing bile and duodenal fluid to flow back into the stomach. As the bile in the bile has a great damaging effect on the gastric mucosa, it can cause gastric mucosal erosion and bleeding. Therefore, long-term smokers, prone to erosive gastritis, atrophic gastritis, bile reflux gastritis and gastric ulcer, and make gastric disease difficult to heal. According to statistics: 10 cigarettes a day, 20-30% of the population will suffer from gastritis, 20 cigarettes a day, 40% of the people will suffer from gastritis. In addition to containing nicotine and other harmful substances, tobacco also contains a certain amount of nitrogen oxides, such as pseudo-nicotine, amines. These substances can be synthesized in the body nitrosyl ortho nicotine and nitroso pseudomercurial base. It is well known that nitrosoids are important carcinogenic substances, for many kinds of cancer has a significant role in promoting. In addition, smoking can reduce the body’s immunity, so smoking is the root cause of many cancers, such as lung cancer, laryngeal cancer, pancreatic cancer, prostate cancer, etc., the occurrence of stomach cancer also has a more obvious role in promoting. According to a survey on the domestic smoking population, the incidence of stomach cancer in the smoking population is 19.3 per 10,000, while in the non-smoking population the incidence of stomach cancer is 4.3 per 10,000, compared to the two, the increase is very obvious. This shows that long-term smoking can seriously harm your stomach, not only triggering gastritis and ulcer disease, making it recurrent and difficult to heal, but also increasing the incidence of gastric cancer. Do you want to have a healthy stomach? Then please quit smoking immediately.