Can stomach cancer be transmitted through saliva?

Stomach cancer is not "contagious". Only oral cancer and other cancers in the oral cavity may cause cancer cells to fall into the saliva. If you kiss a cancer patient at this time, the cancer cells may enter the other person's body and "plant" and grow (this is not called contagion), just like seeds sprouting. However, this is only a theoretical possibility because cancer cells will generally be quickly discovered and killed by the other person's immune system after entering the other person's body.

Diseases are inseparable from some reasons. There are many reasons that can cause people to have stomach problems, but only these reasons can cause stomach cancer:
1. Genes can affect the body's gastric acid secretion, thereby increasing the risk of gastric cancer. People whose family members have suffered from gastric cancer are more likely to have offspring who also suffer from gastric cancer.
2. Not all gastric cancer patients will inherit the disease. Whether or not they will develop the disease depends on their individual immune ability. If the person who inherits the disease has good immunity, gastric cancer will not occur.
3. The reason why gastric cancer occurs is mainly due to the absorption of carcinogens. Long-term consumption of chili peppers, irritating, hard, spicy, fried foods and some carcinogenic foods are the root causes of gastric cancer.
4. Gastric ulcer is also a disease. This type of gastric ulcer itself is not a precancerous condition, but if it is ignored and not treated for a long time, it will develop into gastric cancer.
By understanding the principles of gastric cancer, we know the causes of gastric cancer, so we must avoid these bad habits and develop a good lifestyle to effectively prevent gastric cancer. The saliva of gastric cancer is not contagious, so the majority of patients and their families can rest assured and receive care with peace of mind.