Is colon cancer contagious?

If someone in the family has colon cancer, many relatives will stay away from them for fear of being infected. Is colon cancer really contagious?

We know that there are four ways for cancer cells to metastasize: direct spread, lymphatic metastasis, blood metastasis and implantation metastasis. Therefore, normal skin contact will not cause infection, and there is currently no relevant research to prove that colorectal cancer can be transmitted.

Generally speaking, viruses are contagious. Although liver cancer, stomach cancer, nasopharyngeal cancer, etc. are related to viral infection, this does not mean that cancer is contagious. After viral infection, only 1% to 1‰ of people will develop the disease. More people will not develop the disease, but are in a latent infection state. Whether the disease develops after viral infection is closely related to the body's defense function. If the body's defense function is strong, even if infected with the virus, it may not develop the disease for life.

Foreign medical experts have conducted long-term observations on hospital patients and found that cancer patients with ulcers and cancer patients without ulcers have not been infected with each other when living together for a long time. On the other hand, in real life, doctors treat countless cancer patients, and the incidence of cancer among doctors is not higher than that of ordinary people; in hospitals, patients with different types of cancer have lived in the same ward for a long time, and no infection has been found. Therefore, to this day, all hospitals do not adopt an isolation system for cancer patients, which is also an excellent proof.