Is bone cancer really not contagious at all?

Is bone cancer really not contagious? People are always worried that cancer will be transmitted to them through some means. Is it really not contagious at all? Cancer itself is not directly contagious and is definitely not contagious. The so-called transmission, simply put, is a disease that spreads from one person to another through some means. Transmission must meet three conditions: the source of infection, the route of transmission and the susceptible population. None of the three can be missing. Clinical data proves that cancer patients themselves are not the source of infection.

In layman's terms, cancer is actually a mutation of normal human cells. Cancer is like other organs. Even if it is transplanted to another person, it may not survive. In reality, there are indeed many people like Mr. Fei who have such doubts. This confusion is caused by many reasons. The first reason is that although cancer is not contagious, some viruses and other factors that may cause cancer are contagious. For example, the hepatitis B virus is contagious, and people infected with the hepatitis B virus are more likely to develop liver cancer; the human papillomavirus (HPV) that may cause cervical cancer is also contagious; another example is Helicobacter pylori, which can cause gastritis, and infection may increase the risk of gastric cancer.

Another reason is that some cancers have a certain genetic tendency. This does not mean that cancer is a genetic disease, but that people in the same family may have certain genes that make them particularly susceptible to certain cancers. For example, studies have found that for breast cancer, if a mother or sister has breast cancer, her chance of developing breast cancer is three times that of an average woman. This is because the genetic material in the cells contains certain oncogenes that can be transmitted.

Another phenomenon that people are puzzled about is that relatives who are not blood-related but live in the same family may also suffer from the same cancer one after another. In this regard, Zheng Aimin said that this is often because people living in the same family are exposed to the same carcinogenic factors due to the same living habits. He gave an example that if a family loves to eat pickled food, the chance of suffering from esophageal cancer will increase. However, the above are not caused by infection, so if there are cancer patients around you, you don't have to worry.