Cancer is a collective name for a large group of malignant tumors. Cancer is hereditary, and statistics show that about 5% of cancers are genetically related, such as colon cancer, stomach cancer breast, adenocarcinoma, primary liver cancer, retinoblastoma, neuroblastoma, etc. These cancers have a certain genetic predisposition. If a father has these cancers, there can be a tendency to pass them on to his children. However, the hereditary nature of cancer is different from other hereditary diseases in that it is not passed from generation to generation in the family, but is a kind of cancer susceptibility inheritance, or this kind of inheritance is a tendency to develop certain tumors, for example, children in the family have the same eating habits and the same living environment as the father, so they are also susceptible to develop such tumors.