Does drinking alcohol significantly increase the risk of stomach cancer?

In general, drinking alcohol does not directly cause stomach cancer, but long-term and heavy alcohol consumption can increase the risk of developing stomach cancer. The detailed analysis is as follows:

Stomach cancer is a malignant tumor that originates in the gastric mucosa and is one of the most common types of cancer. Direct causes of stomach cancer typically include Helicobacter pylori infection and genetic factors. There is no direct causal relationship between alcohol consumption and the development of stomach cancer. However, prolonged and excessive drinking significantly increases the risk. Alcohol may directly damage the gastric mucosa, leading to gastritis and gastric ulcers, both of which are high-risk factors for stomach cancer. Additionally, acetaldehyde—a byproduct of alcohol metabolism—is a known carcinogen that may further elevate the risk of stomach cancer.

It is recommended to maintain healthy drinking habits, avoiding excessive alcohol intake and drinking on an empty stomach, in order to reduce the risk of stomach cancer and other related diseases. Furthermore, individuals who already have existing stomach conditions should especially avoid alcohol to prevent worsening of their condition.