Cancer and genetic family there?

Whether the cancer and the genetic family, which is generally concerned about. At present, cancer is not direct genetic diseases, but that a small number of cancer incidence tend to a family gathering, someone in the family with cancer, his children the chance of cancer can be more than most people several times. These type of genetic cancer called familial cancer. Including esophageal cancer, colon cancer, breast cancer, stomach cancer, endometrial cancer. This form of genetic factors in medicine known as genetic susceptibility. People gradually come to realize through observation, lifestyle, and exposure to environmental certain carcinogenic substances in the human body can increase the susceptibility to cancer. Also found that certain innate immune deficiency patients, the risk of cancer much higher than normal. For cancer, genetic type family. Those people often cancer gene defects more likely. Genetic performance of the most prominent is the retinoblastoma, but the incidence of very low. Substantial clinical data confirm that home in cancer patients, the cancer does not necessarily future generations. In addition, in the world, also found that a very small number of cancer family, the family members have about one-third of cancer, but the incidence of men and women, many with the same cancer, the cancer and genetic family certainly, but practical , the family is not more. Some patients are not cancer, but it could be cancer, but also of genetic, clinical syndrome called hereditary tumor. Such as familial polyposis of the colon, the colon polyps can be malignant, such patients must heighten our vigilance and close observation. Genetic cancer problem is very complicated. The occurrence of a cancer is not yet completely solved the mystery. Therefore, it was headed in the cancer, must not be friends in order to maintain a happy mood, improve their own immunity, learning knowledge and understanding of cancer, a cancer of confidence to help their families.