According to epidemiological statistics, the natural incidence of leukemia in China is about 4 in 100,000, with about 40,000 new leukemia patients each year, 40% of whom are children, and most of whom are 2-7 years old. While many children at this age are carefree and playful, children with leukemia are no longer happy. In recent years, children have become a high-risk group for leukemia. The cause of leukemia can be related to physical, chemical and biological factors, so who is the culprit of childhood leukemia? Indoor environmental pollution causes childhood leukemia? To date, scientists have not found an obvious cause for childhood leukemia. However, it is widely believed in the medical community that, in addition to family inheritance, environmental pollution should be an important trigger for childhood leukemia. Back then, the significant increase in local leukemia patients after the atomic bombing of Hiroshima, Japan, allowed scientists to link leukemia to environmental pollution. Recently, the medical profession alert eyes, gradually fall on the indoor environment pollution brought about by home decoration. All signs indicate that there is some mysterious connection between indoor environmental pollution and the culprit of childhood leukemia. A hospital found that after six months of investigation, nearly 90% of the children she had seen with leukemia had recently been renovated, and many of them were “luxuriously decorated”. A statistic also shows that of the more than 1,800 children with leukemia admitted to the Institute of Hematology at a children’s hospital in 10 years, 46.7 percent had been renovated within six months before the onset of the disease. “Renovation” is not only associated with children with leukemia. The survey showed that 54.6% of the more than 1,200 older leukemia patients in the last 10 years had also had their homes renovated within six months. Although whether home renovation induces pediatric leukemia remains to be further proven, but a series of statistical data, so that medical experts have to make the following inference: indoor pollution caused by harmful substances in the decoration materials, is most likely to lead to a high incidence of childhood leukemia in recent years, an important cause. The famous children’s hematologist and former president of Beijing Children’s Hospital, Academician Hu Yami, has made this deduction in several academic seminars. In fact, when we are in a beautiful new home that has just been renovated and still has a “paint smell”, we may not think that the harmful substances that we live with in the future but eat away at our health all the time, and the variety of the many varieties is staggering! The variety of harmful substances that eat away at our health is staggering. According to the data, there are 189 kinds of harmful substances in the living room, which are officially announced by the US EPA alone. The main harmful ones are: radon, formaldehyde, benzene, ammonia, esters, trichloroethylene and asbestos. Most of them are caused by improper selection of materials during decoration and are “lured into the room” by ourselves. Among them, formaldehyde in core board, beech wood, curly willow and other veneer panels and various density boards, and styrene in paint are carcinogens recognized by the International Health Organization, while benzene can cause leukemia and aplastic anemia, which is also recognized by the medical profession. These polluting gases released slowly, only the release of formaldehyde in man-made panels is up to 3 to 15 years. The radon in some artificial marble, granite and other building materials is a more terrible “environmental killer”. Experts introduce that radon is a kind of radioactive gas, which “lurks” in some unqualified cement, flashy wall tiles, marble materials and other decoration materials. When people breathe, radon gas will enter the lungs with the airflow. The alpha rays released when it decays will bombard the lung cells like “bombs”, causing damage to lung cells, which will lead to lung cancer over time and may also cause serious consequences such as leukemia, infertility, fetal malformation and genetic malformation. Experts from the Indoor Environment Monitoring Center of the China Interior Decoration Association said that although it is not certain that children with leukemia are due to home improvement, but in the same environment, for children with defects in their own oncogenes, which is often referred to as the lack of autoimmunity, the stimulation of environmental pollution in the living room may be an important cause of leukemia. How to avoid “leading the wolf into the room” when decorating and stay away from these toxic carcinogens? First of all, we should try to use environmentally friendly materials when renovating; secondly, after the renovation of the room, it should be vacant for a period of time before people can live in it, and the ventilation should be changed frequently when living there. Be alert to the following symptoms Doctors remind that with the development of medicine, childhood leukemia is not incurable, but to be detected early, early treatment. Therefore, parents should be aware of some of the early signs of leukemia to avoid delaying treatment. Whenever any of the following abnormalities are found, you should seek medical attention early and do a comprehensive examination of blood disorders. 1.Unexplained fever, anemia, bleeding, enlargement of liver, spleen and lymph nodes, muscle and joint pain or sternal pressure, swollen and erosive gums for a long time, purpura and bruises on the skin, epistaxis. 2. Unexplained increase in white blood cells.