Smoking harms the digestive system – VnExpress

Smoking affects liver disease, inflammatory bowel disease, and aggravates stomach ulcers.

The lungs are not the only organ that suffers when a person smokes. Smoking affects many organs in the body, including the digestive system. While the digestive system has an important role in processing food into necessary substances.

Inflammatory bowel disease

According to the sheet Very Well Health (USA), smokers have a higher risk of inflammatory bowel disease (Crohn’s disease) than non-smokers. Inflammatory bowel disease when smoking can worsen the condition. It is theorized that smoking reduces blood flow to the intestines or triggers a response in the immune system, which adversely affects inflammatory bowel disease. After one year of quitting, the patient noticed that the flare-ups were less and tended to be much lighter.

Stomach ulcers

Tobacco is a contributor to the formation of ulcers in the duodenum, which can increase the amount of stomach acid flowing into the small intestine. Smokers have a higher risk of stomach ulcers. When peptic ulcers are related to smoking, the treatment time and process is more difficult, the healing rate is lower, and the risk of death is higher than in non-smokers.

Not smoking reduces the risk of many diseases. Image: Freepik


One of the leading causes of heartburn is smoking. According to the explanation, the esophageal sphincter is responsible for keeping stomach acid from backing up into the esophagus. However, smoking directly affects the esophageal sphincter and weakens it, allowing stomach acid to enter the esophagus, causing heartburn. Smoking also directly damages the esophagus, hindering its ability to fight damage.

Smoking also interferes with the movement of bile salts. Bile salts move from the intestines to the stomach. When this transport is interrupted or stopped, the acid in the stomach becomes more acidic and further damages the esophagus, leading to gastroesophageal reflux.

Liver failure

Another organ in the digestive tract that is adversely affected by smoking is the liver. The liver is responsible for filtering toxins out of the body. These toxins include drugs and alcoholic beverages. Liver function can be hindered by cigarette smoke. Smoking also worsens liver disease in alcoholics. People who are suffering from diseases such as primary sclerosing cholangitis, ulcerative colitis, autoimmune hepatitis… if they smoke. The risk of liver disease is much higher than for a non-smoker.

Smoking causes serious and sometimes irreversible damage to the digestive tract. Saying no to tobacco in any form is a necessary way to protect health.

Mr. Chi (Follow Very Well Health)


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