We can tell you clearly that smoking definitely has an effect on the stomach, as follows: 1. Direct stimulation of smoke: smoke can be inhaled directly into the stomach, and toxic fumes cause acute damage to the stomach; 2. Some substances are incorporated into the bloodstream, causing damage to the whole body. Smokers have a high incidence of tumors, including lung and stomach tumors, glandular cancer, etc. Smoking is definitely harmful to the stomach, and a healthy lifestyle should be pursued. For patients who smoke, it is better to quit smoking. There is not a single benefit of smoking, but some patients lack self-control and everyone has to self-manage so that they can have a relatively healthy life.