Methods to prevent leukemia mainly include avoiding chemical contact, paying attention to decoration pollution, and avoiding radiation contact. 1. Avoid chemical contact: in the process of producing phenol, chlorobenzene, nitrobenzene, pesticides, synthetic rubber, plastics, dyes, etc., the staff should pay attention to avoiding contact with hazardous and toxic substances and strengthening labor protection. 2. Pay attention to decoration pollution: In home decoration, materials that meet national standards should be used for decoration, and windows should be opened for a period of time to ventilate the room before moving in after the decoration is completed. 3. Avoid exposure to radiation: avoid radiation in daily life, and those who are engaged in radiation work need to do a good job of personal protection. The occurrence of leukemia is closely related to ionizing radiation, certain chemical agents, home decoration, etc. You should avoid contacting these substances in your daily life, pay attention to physical exercise and regular medical checkups, and go to the hospital in time if you feel unwell.