What reason would people have leukemia

At present the exact cause of leukemia is not very clear, but a lot of scientific research shows that radiation, certain chemicals, viruses and genetic factors may induce leukemia. Γ lines such as radiation, X-ray and other radioactive substances is issued by a naked eye can not see the ray, a large number of people or several times a small amount of radiation exposure can lead to leukemia. We should note here to the hospital film, perspective, a very small dose of radiation will not lead to leukemia. Many chemical substances harmful to the hematopoietic system, and some can be induced leukemia. Here are just some of the more sure of chemical substances and drugs, such as benzene and its derivatives, gasoline, paint, hair dyes (including aniline), and so on; pathogens such as drug chloramphenicol, Bao Tai Song, there are still some The Wanhua Ji cancer treatment can lead to leukemia. Introduction of the leukemia virus may have been recognized, such as human T-lymphocyte-virus (Ⅰ type and type Ⅱ) can trigger leukemia, people infected with the virus, leukemia will not happen immediately, only when the presence of a number of risk factors to promote Of the disease, these risk factors is radiation, chemicals and certain drugs, a large number of multiple-access, and immune function in patients with age, are dangerous. "Catalytic" factors. The cause of leukemia and genetic factors related, where the "genetic" was not referring to the parents of sick children to be genetic, and refers to the abnormal chromosome and gene leukemia incidence rate significantly higher than normal. Such as PH, the existence of chromosomes with chronic myelogenous leukemia incidence is very relevant. Twins, one was suffering from leukemia risk of another person on the great.